The structure and magnetic properties of the di-μ-pyrazolate complex [Cu2(PEAH2)2(NO3)(H2O)](NO3)[PEAH3 = 3,5-bis-(N-ethylamido) pyrazole] |
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| Authors: | Fu Degang Wang Guoxiong Zhou Zongyuan Zhou Xiangge |
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| Institution: | (1) Department of Chemistry of Nanjing University, 210008 Nanjing, P.R. China;(2) Analysis Center, Chengdu Branch of Chinese Academy of Science, 610041 Chengdu, P.R. China |
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| Abstract: | Summary A complex of the formulaCu2(PEAH2)2(NO3)(H2O)]-(NO3)PEAH3 = 3,5-bis(N-ethylamido) pyrazole] was synthesized and its crystal structure determined by XRD methods. It consists of a dimeric cation with two bridging pyrazolate groups and a NO
3
–
anion. The geometries of the coordination polyhedra around the copper(II) ions are distorted square pyramidal. The variable temperature (20–300 K) magnetic susceptibility data gave the antiferromagnetic interaction constant as J=-191cm–1, showing that the pyrazole molecule is very effective in transmitting the exchange interaction. |
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