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Synthesis and magnetism of a binuclear copper(II)–manganese(II) complex with N,N-bis(N-hydroxyethylaminoethyl)oxamido as a bridging ligand

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Abstract

The heterobinuclear complex, [CuMn(L)(phen)2](ClO4)2· H2O, [L = N,N-bis(N-hydroxyethyleneamine)oxamido, phen=1,10-phenanthroline], has been synthesized with N,N-bis(N-hydroxyethylaminoethyl)oxamido as the bridging ligand. The electronic reflectance spectrum indicates the presence of exchange-coupling interaction between bridging MnII and CuII ions. The variable-temperature magnetic susceptibility of the complex was measured over the 4–300K range. The magnetic coupling parameter is consistent with an antiferromagnetic exchange between the MnII ion and CuII ion and fits the data for a heterobinuclear CuII–MnII magnetic exchange model based on the Hamiltonian operator (H= −2JS1S2, S1=1/2, S2=5/2), giving the antiferromagnetic coupling parameter of 2J=−74.0cm−1.

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Authors and Affiliations

  1. Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China

    Jing-Min Shi, Dai-Zheng Liao, Peng Cheng, Zong-Hui Jiang & Geng-Lin Wang

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  1. Jing-Min Shi
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  2. Dai-Zheng Liao
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  3. Peng Cheng
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  4. Zong-Hui Jiang
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  5. Geng-Lin Wang
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Shi, JM., Liao, DZ., Cheng, P. et al. Synthesis and magnetism of a binuclear copper(II)–manganese(II) complex with N,N-bis(N-hydroxyethylaminoethyl)oxamido as a bridging ligand. Transition Metal Chemistry 22, 209–210 (1997). https://doi.org/10.1023/A:1018443903570

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