Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Electronic Properties of Some Complexes of Tetracyanoquinodimethan with Aromatic Diamines
Masatake OhmasaMinoru KinoshitaMizuka SanoHideo Akamatu
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1968 Volume 41 Issue 9 Pages 1998-2004

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Abstract

Complexes of tetracyanoquinodimethan have been prepared with a number of aromatic diamines which are varied in their molecular shape and ionization potential. Infrared absorption spectra have revealed most of the complexes to be ionic in character. They showed a strong ESR absorption; in regard to its temperature dependence, however, three modes of variation were observed for these solid complexes. The complexes with N,N′-diphenyl-p-phenylenediamine and N,N′-di-β-naphthyl-p-phenylenediamine were considered to be of non-bonding type and showed no ESR absorption. However, no appreciable difference in semiconductive properties has been found between the ionic type and the non-bonding type complexes, except the complex of diaminodurene-TCNQ(1 : 2). The latter showed a high electrical conductivity and a paramagnetic behavior which was nearly independent of temperature.

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