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First oxalate-bridged pentanuclear [Cu(L)]3[Mn(ox)3]2 complexes: synthesis and magnetism

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Abstract

Two novel CuII3MnIII2 pentanuclear oxalato complexes have been synthesized and characterized, namely [Cu(L)]3[Mn(ox)3]2 [L = 1,10-phenanthroline(phen) and 2,2′-bipyridyl(bipy)] where ox is the oxalate dianion. Based on i.r., elemental analyses and electronic spectra, thesecomplexesareassignedtoextendedoxalato-bridged structures consisting of two manganese(III) ions and three copper(II) ions, in which each manganese(III) has a distorted octahedral environment and each copper(II) ion a distorted square pyramidal environment. The temperature dependance of the magnetic susceptibility for [Cu(phen)]3[Mn(ox)3]2·4H2O was measured over the 4.2–300K range and the observed data indicates antiferromagnetic spin exchange interaction between the CuII and MnIII ions.

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Authors and Affiliations

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

    Xian-Ru Sun, Ming-Ming Miao, Peng Cheng, Dai-Zheng Liao, Zong-Hui Jiang & Geng-Lin Wang

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  1. Xian-Ru Sun
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  2. Ming-Ming Miao
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  3. Peng Cheng
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  4. Dai-Zheng Liao
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  5. Zong-Hui Jiang
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  6. Geng-Lin Wang
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Sun, XR., Miao, MM., Cheng, P. et al. First oxalate-bridged pentanuclear [Cu(L)]3[Mn(ox)3]2 complexes: synthesis and magnetism. Transition Metal Chemistry 22, 302–303 (1997). https://doi.org/10.1023/A:1018433028585

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