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First crystal structure of a (μ-oxamidato)tricopper(II)metal(II)-type tetranuclear complex: Synthesis, crystal structure, and magnetism of a copper(II)manganese(II) complex ([CuII3MnII(μ-L)3](N 3)2·EtOH) incorporating a macrocyclic oxamide ligand L (macrocyclic oxamide = 1,4,8,11-tetraazacyclotetradecane-2,3-dione)

  • Jin Kui Tang*
  • , Qing Lun Wang
  • , En Qing Gao
  • , Jiu Tong Chen
  • , Dai Zheng Liao
  • , Zong Hui Jiang
  • , Shi Ping Yan
  • , Peng Cheng
  • *此作品的通讯作者
  • Nankai University
  • CAS - Fujian Institute of Research on the Structure of Matter

科研成果: 期刊稿件文章同行评审

摘要

A novel oxamidato-bridged CuII3MnII tetranuclear complex incorporating a macrocyclic oxamide (macrocyclic oxamide L=1,4,8,11-tetraazacyclotetradecane-2,3-dione) of formula [CuII3MnII(μ-L)3](N 3)2· EtOH was prepared and spectroscopically, structurally, and magnetically characterized. This complex represents the first structurally characterized [CuII3MII(μ-oxamidato)3]-type tetranuclear complex. The structure consists of tetranuclear units in which the central MnII atom is located on a twofold axis and linked to the each external CuII atom ion via the 'exo'-cis-arranged O-atoms of the macrocyclic oxamidato ligands. The temperature dependence of the magnetic susceptibility for the complex was analyzed by means of the Hamiltonian Ĥ = - 2JŜMnCu1 + ŜCu2 + ŜCu3), leading to J = -16.3 cm-1.

源语言英语
页(从-至)175-182
页数8
期刊Helvetica Chimica Acta
85
1
DOI
出版状态已出版 - 2002
已对外发布

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