Whither state, private or public service broadcasting? : an analysis of the construction of news on ZBC TV during the 2002 presidential election campaign in Zimbabwe
- Authors: Dlamini, Tula
- Date: 2013-07-16
- Subjects: Zimbabwe Broadcasting Corporation Journalism -- Political aspects -- Zimbabwe Mass media -- Political aspects -- Zimbabwe Political campaigns -- Zimbabwe Elections -- Zimbabwe Television and politics -- Zimbabwe Zimbabwe -- Politics and government -- 1980-
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3520 , http://hdl.handle.net/10962/d1008257
- Description: The study sets out to examine the television coverage of the 2002 presidential campaign in Zimbabwe by examining the extent to which the Zimbabwe Broadcasting Corporation fulfilled the mandate of public service broadcasting. The primary objective of this study is to assess how ZBC television newscasts mediated pluralistic politics in the coverage of the country's presidential election campaign, in line with the normative public sphere principles. The thesis comprises seven chapters organized, first, with an introductory chapter, which provides the general background of the study. The chapter offers the rationale for the focus on TV rather than other media fomls . There are two theoretical and contextual chapters in which the use of both qualitative and quantitative methods is explained and findings are presented. Finally, the conclusion offers recommendations about the form broadcasting might take to fulfil a public service mandate and these include the strengthening of the public service broadcasting model along normative public sphere principles. The findings of the analysed election newscasts confirm that ZBC television election news was constructed in favour of ZANU PF at the expense of voices from other social and political constituencies. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Authors: Dlamini, Tula
- Date: 2013-07-16
- Subjects: Zimbabwe Broadcasting Corporation Journalism -- Political aspects -- Zimbabwe Mass media -- Political aspects -- Zimbabwe Political campaigns -- Zimbabwe Elections -- Zimbabwe Television and politics -- Zimbabwe Zimbabwe -- Politics and government -- 1980-
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3520 , http://hdl.handle.net/10962/d1008257
- Description: The study sets out to examine the television coverage of the 2002 presidential campaign in Zimbabwe by examining the extent to which the Zimbabwe Broadcasting Corporation fulfilled the mandate of public service broadcasting. The primary objective of this study is to assess how ZBC television newscasts mediated pluralistic politics in the coverage of the country's presidential election campaign, in line with the normative public sphere principles. The thesis comprises seven chapters organized, first, with an introductory chapter, which provides the general background of the study. The chapter offers the rationale for the focus on TV rather than other media fomls . There are two theoretical and contextual chapters in which the use of both qualitative and quantitative methods is explained and findings are presented. Finally, the conclusion offers recommendations about the form broadcasting might take to fulfil a public service mandate and these include the strengthening of the public service broadcasting model along normative public sphere principles. The findings of the analysed election newscasts confirm that ZBC television election news was constructed in favour of ZANU PF at the expense of voices from other social and political constituencies. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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A psychoanalytic hermeneutic investigation of destructive narcissism
- Authors: De Wit, Estelle
- Date: 2013-06-04 , 2004
- Subjects: Narcissism Narcissism -- Treatment Psychoanalysis Death instinct Ego (Psychology) Self psychology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3180 , http://hdl.handle.net/10962/d1008055
- Description: The purpose of this research was to investigate the clinical phenomenon of destructive narcissism. Contemporary Kleinian and neo-Kleinian theoretical perspectives provided the interpretative perspective on the complexities of inaccessible personalities and subtle forms of internal destructiveness. Four research questions were formulated to interrogate the individual and collective experiences of three male patients whose internal worlds seem to be governed by rigid intrapychic structures organized around the dictatorship of a constellation of seemingly impenetrable defensive strategies. These questions were as follows: 1. What emotional states, actions and experiences of self and others characterize the clinical phenomenon designed as destructive narcissism and distinguish it from other forms of character pathology? 2. What early developmental experiences and relationships may have pre-disposed individuals to the development of this type of character pathology? 3. How are the psychodynamic processes of destructive narcissism structured and configured in the psychotherapeutic process and progress? 4. What are the transference/countertransference psychotherapeutic manifestations of the psychodynamics of destructive narcissism? The illustrative-didactic case study method was utilized to discuss pertinent aspects of each patient. This included their early developmental histories, inter- and intrapersonal relationships, their current mental state, defensive strategies and their stated reasons for commencing psychotherapy. In addition, the structure of the psychotherapeutic process with these patients was reviewed in depth. Various psychic and personality features, as unveiled through this process were discussed, as well as the implications of these for the therapeutic endeavor. The features chosen for discussion were: Firstly, the constellation of the internal object world, the capacity for symbolic thought and defensive organizations. Secondly, therapeutic ambivalence, which made psychotherapy untenable, was explored in conjunction with transference/countertransference issues. Thirdly, the shadow sides of psychotherapeutic change with these patients were considered and the issues of therapeutic failure and other treatment possibilities were examined. It was concluded that there need be an important shift with regard to the psychotherapeutic goals for those patients whose condition may be chronic, and for whom it appears that psychotherapy is of little benefit. In essence, the intent of psychotherapy with these patients is to reach the healthy sane patient of the patient within the pathological organization. Attempts to unravel the perverse gratification and protection derived from the domination of the narcissistic structure may not be enough, and the patient's collusion with the internal destructive gang should also be exposed. If this can be achieved, the patient may come to accept the existence of a part of himself as truly destructive. This, in turn, cannot be disowned, therefore the patient has to live with it. Thus, in destructive narcissism, the challenge for the therapist is the extremely difficult task of disentangling the patient's pain from the idealization of internal destructiveness. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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- Date Issued: 2004
- Authors: De Wit, Estelle
- Date: 2013-06-04 , 2004
- Subjects: Narcissism Narcissism -- Treatment Psychoanalysis Death instinct Ego (Psychology) Self psychology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3180 , http://hdl.handle.net/10962/d1008055
- Description: The purpose of this research was to investigate the clinical phenomenon of destructive narcissism. Contemporary Kleinian and neo-Kleinian theoretical perspectives provided the interpretative perspective on the complexities of inaccessible personalities and subtle forms of internal destructiveness. Four research questions were formulated to interrogate the individual and collective experiences of three male patients whose internal worlds seem to be governed by rigid intrapychic structures organized around the dictatorship of a constellation of seemingly impenetrable defensive strategies. These questions were as follows: 1. What emotional states, actions and experiences of self and others characterize the clinical phenomenon designed as destructive narcissism and distinguish it from other forms of character pathology? 2. What early developmental experiences and relationships may have pre-disposed individuals to the development of this type of character pathology? 3. How are the psychodynamic processes of destructive narcissism structured and configured in the psychotherapeutic process and progress? 4. What are the transference/countertransference psychotherapeutic manifestations of the psychodynamics of destructive narcissism? The illustrative-didactic case study method was utilized to discuss pertinent aspects of each patient. This included their early developmental histories, inter- and intrapersonal relationships, their current mental state, defensive strategies and their stated reasons for commencing psychotherapy. In addition, the structure of the psychotherapeutic process with these patients was reviewed in depth. Various psychic and personality features, as unveiled through this process were discussed, as well as the implications of these for the therapeutic endeavor. The features chosen for discussion were: Firstly, the constellation of the internal object world, the capacity for symbolic thought and defensive organizations. Secondly, therapeutic ambivalence, which made psychotherapy untenable, was explored in conjunction with transference/countertransference issues. Thirdly, the shadow sides of psychotherapeutic change with these patients were considered and the issues of therapeutic failure and other treatment possibilities were examined. It was concluded that there need be an important shift with regard to the psychotherapeutic goals for those patients whose condition may be chronic, and for whom it appears that psychotherapy is of little benefit. In essence, the intent of psychotherapy with these patients is to reach the healthy sane patient of the patient within the pathological organization. Attempts to unravel the perverse gratification and protection derived from the domination of the narcissistic structure may not be enough, and the patient's collusion with the internal destructive gang should also be exposed. If this can be achieved, the patient may come to accept the existence of a part of himself as truly destructive. This, in turn, cannot be disowned, therefore the patient has to live with it. Thus, in destructive narcissism, the challenge for the therapist is the extremely difficult task of disentangling the patient's pain from the idealization of internal destructiveness. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2004
Getting "layed" : new professional positions in South African psychology
- Authors: Henderson, Jill
- Date: 2013-06-04
- Subjects: Psychology -- Study and teaching -- South Africa Psychologists -- Training of -- South Africa Psychologists -- Selection and appointment -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3179 , http://hdl.handle.net/10962/d1007953
- Description: KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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- Authors: Henderson, Jill
- Date: 2013-06-04
- Subjects: Psychology -- Study and teaching -- South Africa Psychologists -- Training of -- South Africa Psychologists -- Selection and appointment -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3179 , http://hdl.handle.net/10962/d1007953
- Description: KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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Employees' experience of job satisfaction within a successful organisation
- Authors: Milne, Claire
- Date: 2013-06-03
- Subjects: Employee motivation Job satisfaction Employees -- Rating of Performance standards Management -- Employee participation Organizational effectiveness Organizational behavior Employees -- Psychology Wages -- Psychological aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3159 , http://hdl.handle.net/10962/d1007639
- Description: In the present organisational climate characterised by intense competition, the success of an organisation is increasingly dependent on its employees' expertise and knowledge (Carrel, Elbert, Hatfield, Grobler, Marx & Van der Schyf, 1997). Employees need to be motivated to contribute to the organisation's goals, for their knowledge and expertise to benefit an organisation (Lawler III, 1994). Organisations need to foster a situation in which employees have a positive attitude towards work and are able to benefit personally through directing their effort towards organisational goals. (Robbins, 2000) This study focuses on an organisation that has managed to link job satisfaction with organisational gain, and explores the link between these two subjects. A case study of a South African mining operation is reported on, and examined in-depth. The mine, a successful operation in terms of productivity, is recognised by its holding company as exemplary and is competing with the best base metal producers in the world. The research was conducted in two stages. The first stage consisted of 20 semi-structured individual interviews. Ten employees were selected from both the lower employee-levels and the higher employee-levels. The individual interviews focused on the experience of working at the mine with particular reference to interpersonal dynamics, job satisfaction, leadership style, and reward systems. During the second stage of the research, focus groups were conducted with two groups of seven employees each, one group from the lower-levels and one from the higher-levels. The focus groups aimed at obtaining a deeper understanding of the issues that emerged from the individual interviews. Grounded theory analysis was used during both the first, and second phase of the study. The results indicated that the mine's employees experience a high level fulfilment of higher-order needs, and that this experience is a reaction to the mine's performance enhancing culture. It is further shown that the same factors that create job satisfaction, when applied in excess, or in certain circumstances may lead to dissatisfaction within the same context.
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- Authors: Milne, Claire
- Date: 2013-06-03
- Subjects: Employee motivation Job satisfaction Employees -- Rating of Performance standards Management -- Employee participation Organizational effectiveness Organizational behavior Employees -- Psychology Wages -- Psychological aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3159 , http://hdl.handle.net/10962/d1007639
- Description: In the present organisational climate characterised by intense competition, the success of an organisation is increasingly dependent on its employees' expertise and knowledge (Carrel, Elbert, Hatfield, Grobler, Marx & Van der Schyf, 1997). Employees need to be motivated to contribute to the organisation's goals, for their knowledge and expertise to benefit an organisation (Lawler III, 1994). Organisations need to foster a situation in which employees have a positive attitude towards work and are able to benefit personally through directing their effort towards organisational goals. (Robbins, 2000) This study focuses on an organisation that has managed to link job satisfaction with organisational gain, and explores the link between these two subjects. A case study of a South African mining operation is reported on, and examined in-depth. The mine, a successful operation in terms of productivity, is recognised by its holding company as exemplary and is competing with the best base metal producers in the world. The research was conducted in two stages. The first stage consisted of 20 semi-structured individual interviews. Ten employees were selected from both the lower employee-levels and the higher employee-levels. The individual interviews focused on the experience of working at the mine with particular reference to interpersonal dynamics, job satisfaction, leadership style, and reward systems. During the second stage of the research, focus groups were conducted with two groups of seven employees each, one group from the lower-levels and one from the higher-levels. The focus groups aimed at obtaining a deeper understanding of the issues that emerged from the individual interviews. Grounded theory analysis was used during both the first, and second phase of the study. The results indicated that the mine's employees experience a high level fulfilment of higher-order needs, and that this experience is a reaction to the mine's performance enhancing culture. It is further shown that the same factors that create job satisfaction, when applied in excess, or in certain circumstances may lead to dissatisfaction within the same context.
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Acquiring academic reading practices in History I : an ethnographic study of a group of foundation year students at Rhodes University
- Authors: Niven, Penelope Mary
- Date: 2013-05-29
- Subjects: Compensatory education -- South Africa English language -- Study and teaching (Higher) -- Foreign speakers History -- Study and teaching (Higher) -- Foreign speakers College students, Black -- South Africa Black people -- Education (Higher) -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2380 , http://hdl.handle.net/10962/d1007860
- Description: This thesis reports on a critical, ethnographic investigation into the reading practices of a group of 14 foundation year students at Rhodes University in 2002. The university had identified all the student-participants as 'underprepared' for university learning: they were from poor, socio-economic backgrounds, used English as an additional language, and had been educated in township or rural schools. Using the Socio-cultural model of literacy (Heath, 1984; Gee, 1990 & Street, 1993), the study explores the culturally-shaped attitudes and assumptions about reading that the students brought with them into a tertiary learning context from their homes, communities and schools. It reports on their subsequent efforts to become academic readers in the disciplinary context of History. Framing Theory (Reid and MacLachlan, 1994) was employed to analyse the kinds of matches and mismatches that arose between the students' frames about the nature and purpose of reading, and those implicitly accepted as normative by teachers in the History department. It accounts for the students' difficulties in achieving epistemological access in terms of a conflict of frames: both the students and their teachers usually failed to recognise each others' constructions about the nature and purpose of 'reading for a degree'. The study'S critical purpose required that its potential for generating emancipatory consequences needed to be investigated. Thus the study reports on how both sets of participants began to reframe their understanding of academic reading, by describing the ways in which they reflected on the findings in the final stages of the research process. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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- Authors: Niven, Penelope Mary
- Date: 2013-05-29
- Subjects: Compensatory education -- South Africa English language -- Study and teaching (Higher) -- Foreign speakers History -- Study and teaching (Higher) -- Foreign speakers College students, Black -- South Africa Black people -- Education (Higher) -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2380 , http://hdl.handle.net/10962/d1007860
- Description: This thesis reports on a critical, ethnographic investigation into the reading practices of a group of 14 foundation year students at Rhodes University in 2002. The university had identified all the student-participants as 'underprepared' for university learning: they were from poor, socio-economic backgrounds, used English as an additional language, and had been educated in township or rural schools. Using the Socio-cultural model of literacy (Heath, 1984; Gee, 1990 & Street, 1993), the study explores the culturally-shaped attitudes and assumptions about reading that the students brought with them into a tertiary learning context from their homes, communities and schools. It reports on their subsequent efforts to become academic readers in the disciplinary context of History. Framing Theory (Reid and MacLachlan, 1994) was employed to analyse the kinds of matches and mismatches that arose between the students' frames about the nature and purpose of reading, and those implicitly accepted as normative by teachers in the History department. It accounts for the students' difficulties in achieving epistemological access in terms of a conflict of frames: both the students and their teachers usually failed to recognise each others' constructions about the nature and purpose of 'reading for a degree'. The study'S critical purpose required that its potential for generating emancipatory consequences needed to be investigated. Thus the study reports on how both sets of participants began to reframe their understanding of academic reading, by describing the ways in which they reflected on the findings in the final stages of the research process. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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The hydrogeomorphology of the Featherstone Kloof Catchment
- Authors: Ntakumba, Stanley Sixolile
- Date: 2013-05-29
- Subjects: Wetlands -- South Africa , Wetland restoration -- South Africa -- Featherstone Kloof Catchment , Wetland conservation -- South Africa -- Featherstone Kloof Catchment , Wetland management -- South Africa -- Featherstone Kloof Catchment , Wetland ecology -- South Africa -- Featherstone Kloof Catchment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4870 , http://hdl.handle.net/10962/d1007862 , Wetlands -- South Africa , Wetland restoration -- South Africa -- Featherstone Kloof Catchment , Wetland conservation -- South Africa -- Featherstone Kloof Catchment , Wetland management -- South Africa -- Featherstone Kloof Catchment , Wetland ecology -- South Africa -- Featherstone Kloof Catchment
- Description: Wetlands are an important part of the landscape as hydrogeomorphological ecosystems. Over the centuries their importance has not received relevant attention; instead they have been treated as wastelands impeding development for maximum economic benefits. Research evidence from different parts of the world has influenced the change of such negative perceptions to an extent that the issue of wetlands' rehabilitation/restoration, conservation and management is firmly on the global agenda and local agendas of various countries, as evidenced by the adoption of the Ramsar Convention in 1971, and the Working for Water and Working for Wetlands programmes of the South African government. The aim of this research was to investigate the hydrological and geomorphological functions of a headwater wetland located in the Featherstone Kloof Catchment near Grahamstown, South Africa. The research was based on the hypotheses that wetlands store sediments, attenuate floods, store water and prolong downstream flows. A literature survey was conducted to gauge the state of knowledge about wetlands, particularly their hydrogeomorphology. An attempt was made to locate the study area within the broad historical and spatial context using a number of methods, including the radiocarbon dating of wetland sediments, the review of relevant literature and the analysis of historical hydroclimatic data. The results revealed that the wetland has existed for approximately 2000 years - as the oldest radiocarbon date obtained was 1850±50 BP. An analysis of more than a century (+120 years) long Grahamstown rainfall series indicated a steady fluctuation of rainfall around the mean, with regular decada1 cycles of wet and dry spells. Years with more rain below average were more common than those with higher rainfall, and storms events were quite common in the III area over the period. The distribution of seasons in the area over a calendar year period was demonstrated through the use of evaporation data. An intensive monitoring of hydrological and geomorphological variables was carried out using a combination of methods. The topography of the instrumented site was determined using a Total Station from reference benchmarks. Hydrological measurements included a nest of forty-eight piezometers for water table monitoring, and streamflow gauges at the upstream and downstream limits of the study site. Soil stratigraphic analysis was carried out through field techniques and laboratory measurements. A survey of wetland sediments was carried out after the main floods events. Data generated were used to analyse relationships between various variables and their role on the functioning of the wetland. The water balance of the wetland was quantified. The results indicated that the wetland was able to perform the cited hydrogeomorphological functions to some extent. For example, one of the key findings of this research is that the wetland was important in sustaining base flows under normal circumstances. However, the wetland did little to attenuate large floods. The results also revealed some important questions that require further research, including the role played by extreme flood events in altering wetland characteristics, the contribution of each water balance component in the hydrological functioning of wetlands, and importance of quantifying sediment budgets of headwater wetlands. The study demonstrated the complex nature of the wetland hydro geomorphology and that certain questions about wetlands require direct field monitoring to be better understood. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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- Authors: Ntakumba, Stanley Sixolile
- Date: 2013-05-29
- Subjects: Wetlands -- South Africa , Wetland restoration -- South Africa -- Featherstone Kloof Catchment , Wetland conservation -- South Africa -- Featherstone Kloof Catchment , Wetland management -- South Africa -- Featherstone Kloof Catchment , Wetland ecology -- South Africa -- Featherstone Kloof Catchment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4870 , http://hdl.handle.net/10962/d1007862 , Wetlands -- South Africa , Wetland restoration -- South Africa -- Featherstone Kloof Catchment , Wetland conservation -- South Africa -- Featherstone Kloof Catchment , Wetland management -- South Africa -- Featherstone Kloof Catchment , Wetland ecology -- South Africa -- Featherstone Kloof Catchment
- Description: Wetlands are an important part of the landscape as hydrogeomorphological ecosystems. Over the centuries their importance has not received relevant attention; instead they have been treated as wastelands impeding development for maximum economic benefits. Research evidence from different parts of the world has influenced the change of such negative perceptions to an extent that the issue of wetlands' rehabilitation/restoration, conservation and management is firmly on the global agenda and local agendas of various countries, as evidenced by the adoption of the Ramsar Convention in 1971, and the Working for Water and Working for Wetlands programmes of the South African government. The aim of this research was to investigate the hydrological and geomorphological functions of a headwater wetland located in the Featherstone Kloof Catchment near Grahamstown, South Africa. The research was based on the hypotheses that wetlands store sediments, attenuate floods, store water and prolong downstream flows. A literature survey was conducted to gauge the state of knowledge about wetlands, particularly their hydrogeomorphology. An attempt was made to locate the study area within the broad historical and spatial context using a number of methods, including the radiocarbon dating of wetland sediments, the review of relevant literature and the analysis of historical hydroclimatic data. The results revealed that the wetland has existed for approximately 2000 years - as the oldest radiocarbon date obtained was 1850±50 BP. An analysis of more than a century (+120 years) long Grahamstown rainfall series indicated a steady fluctuation of rainfall around the mean, with regular decada1 cycles of wet and dry spells. Years with more rain below average were more common than those with higher rainfall, and storms events were quite common in the III area over the period. The distribution of seasons in the area over a calendar year period was demonstrated through the use of evaporation data. An intensive monitoring of hydrological and geomorphological variables was carried out using a combination of methods. The topography of the instrumented site was determined using a Total Station from reference benchmarks. Hydrological measurements included a nest of forty-eight piezometers for water table monitoring, and streamflow gauges at the upstream and downstream limits of the study site. Soil stratigraphic analysis was carried out through field techniques and laboratory measurements. A survey of wetland sediments was carried out after the main floods events. Data generated were used to analyse relationships between various variables and their role on the functioning of the wetland. The water balance of the wetland was quantified. The results indicated that the wetland was able to perform the cited hydrogeomorphological functions to some extent. For example, one of the key findings of this research is that the wetland was important in sustaining base flows under normal circumstances. However, the wetland did little to attenuate large floods. The results also revealed some important questions that require further research, including the role played by extreme flood events in altering wetland characteristics, the contribution of each water balance component in the hydrological functioning of wetlands, and importance of quantifying sediment budgets of headwater wetlands. The study demonstrated the complex nature of the wetland hydro geomorphology and that certain questions about wetlands require direct field monitoring to be better understood. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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Synthesis and evaluation of PGM-selective ligands
- Gxoyiya, Babalwa Siliziwe Blossom
- Authors: Gxoyiya, Babalwa Siliziwe Blossom
- Date: 2013-05-28
- Subjects: Platinum group , Ligands , Ligands -- Evaluation
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4450 , http://hdl.handle.net/10962/d1007849 , Platinum group , Ligands , Ligands -- Evaluation
- Description: A series of polydentate POM-selective, sulfur-containing amide ligands have been synthesized from ro-dibromoalkanes and mercaptoacetanilide, The resulting 3,6- dithiaoctanediamides and 3,7-dithianonanediamides, some of which contain a polymerisable group, were all characterized by high-resolution MS, IR, I Hand I3C NMR spectroscopic methods. Various approaches to the polymerisable ligands were explored, the most efficient proving to be the incorporation of an allyl ether moiety in the mercaptoacetanilide. The corresponding Pd(U) and Pt(II) complexes were also prepared from the metal chloride salts and characterized by elemental analysis and spectroscopic methods. The NMR data indicates that both the cis- and transcomplexes were formed, while the IR data indicates cis- coordination of the chlorine . ligands. Molecularly imprinted polymers (MIP's), prepared using platinum(II) mercaptoacetanilide and 3,6-dithiadiamide complexes, showed high selectivity for , , palladium(II) [in the presence of Pt(II), CoCII), Cu(II) and Ni(II)] as determined by . ICP-MS analysis. The more kinetically inert Pt(II) ions however, slowly displaced Pd(II), confirming the Pt(II) selectivity of the MIP's. Solvent extraction studies were conducted to explore the selectivity of the 3,6- dithiaoctanediamides and 3,7-dithianonanediamides for Pd(U) over CoCII), Cu(U) and Ni(II). The ICP-MS data indicate that, in general, equilibration was achieved within ten minutes and that the longer-chain amides were less selective than the shorter-chain analogues. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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- Authors: Gxoyiya, Babalwa Siliziwe Blossom
- Date: 2013-05-28
- Subjects: Platinum group , Ligands , Ligands -- Evaluation
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4450 , http://hdl.handle.net/10962/d1007849 , Platinum group , Ligands , Ligands -- Evaluation
- Description: A series of polydentate POM-selective, sulfur-containing amide ligands have been synthesized from ro-dibromoalkanes and mercaptoacetanilide, The resulting 3,6- dithiaoctanediamides and 3,7-dithianonanediamides, some of which contain a polymerisable group, were all characterized by high-resolution MS, IR, I Hand I3C NMR spectroscopic methods. Various approaches to the polymerisable ligands were explored, the most efficient proving to be the incorporation of an allyl ether moiety in the mercaptoacetanilide. The corresponding Pd(U) and Pt(II) complexes were also prepared from the metal chloride salts and characterized by elemental analysis and spectroscopic methods. The NMR data indicates that both the cis- and transcomplexes were formed, while the IR data indicates cis- coordination of the chlorine . ligands. Molecularly imprinted polymers (MIP's), prepared using platinum(II) mercaptoacetanilide and 3,6-dithiadiamide complexes, showed high selectivity for , , palladium(II) [in the presence of Pt(II), CoCII), Cu(II) and Ni(II)] as determined by . ICP-MS analysis. The more kinetically inert Pt(II) ions however, slowly displaced Pd(II), confirming the Pt(II) selectivity of the MIP's. Solvent extraction studies were conducted to explore the selectivity of the 3,6- dithiaoctanediamides and 3,7-dithianonanediamides for Pd(U) over CoCII), Cu(U) and Ni(II). The ICP-MS data indicate that, in general, equilibration was achieved within ten minutes and that the longer-chain amides were less selective than the shorter-chain analogues. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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