Crystal and molecular structure of the new anion-radical salts -: (N-Me-2-NH2-Pz)(TCNQ)2 and (N-Me-Tetra-Me-Pz)(TCNQ)2 (Pz is pyrazine)

被引：17
|
作者：
Kazheva, O. N.
Ziolkovskiy, D. V.
Alexandrov, G. G.
Chekhlov, A. N.
Dyachenko, O. A.
Starodub, V. . A.
Khotkevich, A. V.
机构：
[1] Kharkov Natl Univ, Dept Chem, UA-61077 Kharkov, Ukraine
[2] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Russia
[3] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow, Russia
[4] B Verkin Inst Low Temp Phys & Engn Acad Sci, Kharkov, Ukraine
来源：
SYNTHETIC METALS | 2006年 / 156卷 / 16-17期
基金：
俄罗斯基础研究基金会;
关键词：
7,7',8,8'-tetracyanoquinodimethane; pyrazine; anion-radical salts; organic conductors;
D O I：
10.1016/j.synthmet.2006.06.013
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Two anion-radical salts (ARS) of 7,7',8,8'-tetracyanoquinodimethane (TCNQ)-(N-Me-2-NHz-Pz)(TCNQ)(2) and (N-Me-Tetra-Me-Pz)(TCNQ)(2) (N-Me-2-NH2-Pz, N-methyl-2-amino-pyrazinium-; N-Me-Tetra-Me-Pz, N-methyl-tetra-methyl-pyrazinium-ions) - were synthesized and characterized. Both salts (ARS) were found to be semiconductors with a room-temperature conductivity of 3.8 x 10(-5) and 1.93 x 10(-2) Omega(-1) cm(-1), respectively. For both salts a layered structure of cations and anion-radicals was discovered, where layers composed of cations alternate along the b-axis with the layers containing TCNQ anion-radicals. The cations in the (N-Me-2-NH2-Pz)(TCNC)(2) form pairs bonded by strongly shortened 1.97 (2) angstrom intermolecular hydrogen N(1)... H(3a) links. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1010 / 1016
页数：7
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