高等学校化学学报

高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 228.

• Chemistry in Materials Sciences • 上一篇    下一篇

Synthesis and Structures of Polynuclear Copper(Ⅱ)-lanthanide(Ⅲ) Complexes with Carboxylate-bridges or Imidazolemethanol

YANG Yang-Yi, CHEN Xiao-Ming   

  1. School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275
  • 出版日期:2000-12-31 发布日期:2000-12-31
  • 基金资助:

    This work was supported by the NSFC (29625102) and NSF of Guangdong.

Synthesis and Structures of Polynuclear Copper(Ⅱ)-lanthanide(Ⅲ) Complexes with Carboxylate-bridges or Imidazolemethanol

YANG Yang-Yi, CHEN Xiao-Ming   

  1. School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275
  • Online:2000-12-31 Published:2000-12-31
  • Supported by:

    This work was supported by the NSFC (29625102) and NSF of Guangdong.

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摘要：

Polynuclear mixed-metal complexes are of current interest in chemistry and are of potential application in material science. We report herewith the synthesis and crystal structures of two dinuclear copper(Ⅱ)-lanthanide(Ⅲ) complexes containing pyridinioacetate (pyb, C5H5N+CH2CO2-) or N-Methyl-2-imizazolemethanol(imoh), namely[CuLa(pyb)5(H2O)(C1O4)5·2H2O (1) and[CuLa(imoh)2(NO3)3(H2O)2] (2). Complexes 1 features a dinuclear CuLa cation, in which the Cu and La atoms are bridged by a tetrakis(μ2-carboxylate) bridge, the Cu atom is coordinated in a square-pyramidal geometry with the apical position being occupied by an aqua ligan, the La atom is coordinated in a distorted square-antiprism. Complex 2 also features a dinuclear CuLa molecule, with Cu and La atoms are bridged by a di(μ2-imidazolemethanol) bridge, the Cu atom is coordinated in plane square geometry with two N and two O atoms from two imoh, besides the two O atoms from the di(μ2-imidazolemethanol) bridge, the La atom is complied by three chelating nitrates and two aqua ligans, to form bicapped square-antiprism geometry.

Abstract:

Polynuclear mixed-metal complexes are of current interest in chemistry and are of potential application in material science. We report herewith the synthesis and crystal structures of two dinuclear copper(Ⅱ)-lanthanide(Ⅲ) complexes containing pyridinioacetate (pyb, C5H5N+CH2CO2-) or N-Methyl-2-imizazolemethanol(imoh), namely[CuLa(pyb)5(H2O)(C1O4)5·2H2O (1) and[CuLa(imoh)2(NO3)3(H2O)2] (2). Complexes 1 features a dinuclear CuLa cation, in which the Cu and La atoms are bridged by a tetrakis(μ2-carboxylate) bridge, the Cu atom is coordinated in a square-pyramidal geometry with the apical position being occupied by an aqua ligan, the La atom is coordinated in a distorted square-antiprism. Complex 2 also features a dinuclear CuLa molecule, with Cu and La atoms are bridged by a di(μ2-imidazolemethanol) bridge, the Cu atom is coordinated in plane square geometry with two N and two O atoms from two imoh, besides the two O atoms from the di(μ2-imidazolemethanol) bridge, the La atom is complied by three chelating nitrates and two aqua ligans, to form bicapped square-antiprism geometry.

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