Issue 19, 2002
From the journal:

Journal of the Chemical Society, Dalton Transactions

Unique structural and physical properties of Ni(dmit)2 anion radical salts characterized by short Te⋯S contacts (dmit = 1,3-dithiole-2-thione-4,5-dithiolate)

Masahiro Fujiwaraa  and  Reizo Kato*b  

* Corresponding authors

a The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-shi, Chiba 277-8581, Japan
E-mail: mfuji@issp.u-tokyo.ac.jp

b RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
E-mail: reizo@postman.riken.go.jp

Abstract

Five new Ni(dmit)2 anion radical salts, [Me3Te][Ni(dmit)2]2 (1), [Me3Te][Ni(dmit)2]3·(CH3)2C(O) (2), α-[MOT][Ni(dmit)2]2 (3), β-[MOT][Ni(dmit)2]2 (4), and γ-[MOT][Ni(dmit)2]2 (5) (dmit = 1,3-dithiole-2-thione-4,5-dithiolate; MOT = 1-oxa-4-methyl-4-telluracyclohexane) have been prepared by galvanostatic electrolysis. X-Ray crystal structure analyses show that all the salts are characterized by short Te⋯S contacts (3.41–3.85 Å) between the anions and cations. Each salt shows unique molecular packing of the Ni(dmit)2 units. The electronic structures are strongly dependent on these unique molecular arrangements. Among them, 1 and 3 show metallic behavior (down to 60 and 160 K, respectively) and the resistivity of 4 is almost independent of temperature, increasing moderately below 40 K.

Graphical abstract: Unique structural and physical properties of Ni(dmit)2 anion radical salts characterized by short Te⋯S contacts (dmit = 1,3-dithiole-2-thione-4,5-dithiolate)

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Article information

DOI
https://doi.org/10.1039/B203834J
Article type
Paper
Submitted
19 Apr 2002
Accepted
01 Aug 2002
First published
12 Sep 2002

J. Chem. Soc., Dalton Trans., 2002, 3763-3770

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Unique structural and physical properties of Ni(dmit)2 anion radical salts characterized by short Te⋯S contacts (dmit = 1,3-dithiole-2-thione-4,5-dithiolate)

M. Fujiwara and R. Kato, J. Chem. Soc., Dalton Trans., 2002, 3763 DOI: 10.1039/B203834J

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