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The Crystal Structure of a RAS (N–CH 3 -2-NH 2 -5-Cl– Py )(TCNQ)(CH 3 CN) Solvate
Crystallography Reports ( IF 0.6 ) Pub Date : 2020-04-07 , DOI: 10.1134/s1063774520020248
T. N. Starodub , D. Fenske , O. Fuhr , O. N. Kazheva , V. A. Starodub

Abstract

The structure of the radical anion salt (RAS) of 7,7,8,8-tetracyanedimethane (TCNQ) with a cation based on 2-amin-5-chloro-pyridine (2-NH2-5-Cl–Py, Am), that is, (N–CH3-2-NH2-5-Cl–Py) (TCNQ) (CH3CN), (I) is presented. Unlike most TCNQ RASs, which contain flat TCNQ particle stacks, RAS I contains practically isolated (TCNQ)\(_{2}^{{2 - }}\) π-dimers with unusually short distances between the planes in the dimers: 3.24 Å. In the RAS I IR spectra special features are observed that correspond to the vibronic interactions of molecular vibrations.


中文翻译:

RAS(N–CH 3 -2-NH 2 -5-Cl– Py)(TCNQ)(CH 3 CN)溶剂化物的晶体结构

摘要

7,7,8,8-四氰基二甲基甲烷(TCNQ)的自由基阴离子盐(RAS)的结构基于2-氨基5氯吡啶(2-NH 2 -5-Cl– Py,Am ),即(N–CH 3 -2-NH 2 -5-Cl– Py)(TCNQ)(CH 3 CN),表示为(I)。与大多数包含平坦TCNQ粒子堆栈的TCNQ RAS不同,RAS I包含实际上隔离的(TCNQ)\(_ {2} ^ {{2-}} \) π-二聚体,二聚体平面之间的距离异常短:3.24一种。在RAS I IR光谱中,观察到与分子振动的电子相互作用相对应的特殊特征。
更新日期:2020-04-07
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