Hydrothermal synthesis and magnetism of a chromium(III) squarate complex |
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| Authors: | Shi Jingmin Xu Jiqing Yang Guoyu Wang Tiegang Huang Qijun Cheng Peng Liao Daizheng Liu Yongjiang |
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| Institution: | (1) Department of Chemistry, Jilin University, Changchun, 130023, P.R. China;(2) Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China;(3) State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, P.R. China |
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| Abstract: | The Cr2(Sq)2(OH)2·6H2O complex (Sq=squarate), synthesized by a hydrothermal method, was characterized by elemental analysis, i.r. and electronic reflection spectra. The variable-temperature magnetic susceptibility of the complex was measured over the 77–300K range. The magnetic coupling parameter is consistent with an antiferromagnetic exchange model based on the Hamiltonian operator (H^ = -2JS^1S^2, where S1 = S2 = 3/2), giving the antiferromagnetic coupling parameter of 2J = -11.5 cm–1. |
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