- Title
- Comparative Spectroscopic and Electrochemical Properties of Bis (octakis (dodecylthio) naphthalocyaninato) europium (III) and Bis (tetra-tert-butylnaphthalocyaninato) europium (III) Complexes
- Creator
- Nyokong, Tebello
- Creator
- Furuya, Fumio
- Creator
- Kobayashi, Nagao
- Creator
- Du, Daming
- Creator
- Liu, Wei
- Creator
- Jiang, Jianzhuang
- Subject
- To be catalogued
- Date Issued
- 2000
- Date
- 2000
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/293174
- Identifier
- vital:57062
- Identifier
- xlink:href="https://doi.org/10.1021/ic990483b"
- Description
- Bis(substituted-2,3-naphthalocyaninato)europium(III) complexes: bis(octakis(dodecylthio)-2,3-naphthalocyaninato)europium(III) {Eu[2,3-Nc(SC12H25)8]2, 1} and bis(tetra-tert-butyl-2,3-naphthalocyaninato)europium(III) {Eu[2,3-Nc(t-Bu)4]2, 2} have been synthesized by cyclic tetramerization of naphthalonitriles with Eu(acac)3·H2O in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in refluxing n-octanol. These compounds were characterized by UV−visible, magnetic circular dichroism (MCD), near-IR, IR, EPR, and mass spectroscopies. The absorption and MCD spectra of 1 showed splitting of the Q band, with peaks at 700 and 784 nm, red shifted from the Q band of 2 at 763 nm. The absorption and MCD spectral band deconvolution calculations of complex 1 gave two A terms in the Q-band region. The A terms are assigned to 2A2 → 2E1 transitions. Cyclic voltammograms of 1 and 2 showed reversible oxidation couples at E1/2 = −0.28 V (for 2) and −0.25 V (for 1) vs ferrocenium/ferrocene (Fc+/Fc). The second oxidation exhibited a complicated behavior for both complexes. The reduction couples for 2 were observed at E1/2 = −0.61, −1.64, −1.97, and −2.42 V, and for 1 they were observed at E1/2 = −0.62, −1.60, −1.86, and −2.27 V vs Fc+/Fc. Spectral changes observed on chemical oxidation and reduction of the complexes are presented, and the behaviors of 1 and 2 are compared.
- Format
- computer
- Format
- online resource
- Format
- application/pdf
- Format
- 1 online resource (8 pages)
- Format
- Publisher
- ACS Publications
- Language
- English
- Relation
- Inorganic Chemistry
- Relation
- Nyokong, T., Furuya, F., Kobayashi, N., Du, D., Liu, W. and Jiang, J., 2000. Comparative Spectroscopic and Electrochemical Properties of Bis (octakis (dodecylthio) naphthalocyaninato) europium (III) and Bis (tetra-tert-butylnaphthalocyaninato) europium (III) Complexes. Inorganic chemistry, 39(1), pp.128-135
- Relation
- Inorganic Chemistry volume 39 number 11 p. 128 2000 1520-510X
- Rights
- Publisher
- Rights
- Use of this resource is governed by the terms and conditions of the ACS Publications Terms of Use Statement (https://0-www.acs.org.wam.seals.ac.za/content/acs/en/terms.html)
- Rights
- Closed Access
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Nyokong, Tebello (Distinguished Professor)
RU Department of Chemistry
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