1:1 Complexes of Dimethylthio- and Ethylenedithio-tetrathiafulvalenothioquinone- 1,3-dithiolemethides with CuBr2 as a New Type of 
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- 作者：Masaki Iwamatsu ; Tsuyoshi Kominami ; Kazumasa Ueda ; Toyonari Sugimoto ; Tomohiro Adachi ; Hideo Fujita ; Harukazu Yoshino ; Yoshiyuki Mizuno ; Keizo Murata ; and Motoo Shiro
- 刊名：Inorganic Chemistry
- 出版年：2000
- 出版时间：August 21, 2000
- 年：2000
- 卷：39
- 期：17
- 页码：3810 - 3815
- 全文大小：129K
- 年卷期：v.39,no.17(August 21, 2000)
- ISSN：1520-510X
文摘
The reaction of dimethylthio- (1) and ethylenedithio-tetrathiafulvalenothioquinone-1,3-dithiolemethides (2) withCuBr2 gave 1:1 complexes between the donors and CuBr2, 1·CuBr2 and 2·CuBr2, in which the Cu atom of CuBr2binds to the thiocarbonyl S atom in 1 and 2. The electrical conductivity (
) of 1·CuBr2 at room temperature wasca. 10-5 S cm-1, while a comparatively high value of 4.0 S cm-1 was obtained for 2·CuBr2, whose temperaturedependence of exhibited, however, semiconducting behavior with a very small activation energy of 0.18 eV.The observed paramagnetic susceptibilities (
p's) of the Cu complexes were composed of both a component dueto the localized Cu spins obeying the Curie-Weiss law and a temperature-independent p due to the conducting
electrons on the 1- or 2-stacked columns. From the Curie constants obtained, the degrees of intramolecularelectron transfer from 1 and 2 to CuBr2 moieties were estimated at ca. 90% and 60%, respectively. The small,negative Weiss temperatures suggest very weak antiferromagnetic interactions among the Cu spins on the CuBr2moieties.
) of 1·CuBr2 at room temperature wasca. 10-5 S cm-1, while a comparatively high value of 4.0 S cm-1 was obtained for 2·CuBr2, whose temperaturedependence of exhibited, however, semiconducting behavior with a very small activation energy of 0.18 eV.The observed paramagnetic susceptibilities (p's) of the Cu complexes were composed of both a component dueto the localized Cu spins obeying the Curie-Weiss law and a temperature-independent p due to the conducting electrons on the 1- or 2-stacked columns. From the Curie constants obtained, the degrees of intramolecularelectron transfer from 1 and 2 to CuBr2 moieties were estimated at ca. 90% and 60%, respectively. The small,negative Weiss temperatures suggest very weak antiferromagnetic interactions among the Cu spins on the CuBr2moieties.