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Charge-transfer Interactions of Octaethylporphycenatozinc(II) with 2,6-Dichloro-3,5-dicyano-1,4-benzoquinone†

✍ Scribed by Francis D'Souza; Jamie L. Pollock; Evangelos A. Nantsis; Melvin E. Zandler

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
173 KB
Volume
01
Category
Article
ISSN
1088-4246

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✦ Synopsis

Charge-transfer interactions of octaethylporphycenatozinc(II), ( OEPc ) Zn with 2,6-dichloro-3,5-dicyano-1,4-benzoquinone, DDQ, in non-aqueous solvents are reported. Both optical absorption and cyclic voltammetry studies reveal the formation of stable charge-transfer complexes between ( OEPc ) Zn and DDQ. New redox couples corresponding to reduction of the charge-transfer complex have been electrochemically detected. The formation of charge-transfer complexes between ( OEPc ) Zn and doubly reduced DDQ is examined and the present electrochemical studies reveal the possible existence of such complexes in solution. Based on semiempirical AM1 and PM3 calculations, interaction through the zinc(II) metal center of ( OEPc ) Zn and cyanide nitrogen of the quinone is proposed.

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