高等学校化学学报

高等学校化学学报 ›› 2001, Vol. 22 ›› Issue (6): 887.

• 研究论文 • 上一篇    下一篇

两个N,N'-亚乙基双(1-苯基-3-亚氨基-1-丁酮)锰(Ⅲ)配合物的合成、表征和晶体结构

冯云龙1, 刘世雄2   

  1. 1. 浙江师范大学生命与环境科学学院, 金华 321004;
    2. 福州大学化学系, 福州 350002
  • 收稿日期:2000-05-30 出版日期:2001-06-24 发布日期:2001-06-24
  • 通讯作者: 冯云龙(1958年出生),男,博士,副教授,主要从事配位化学和结构化学研究.

Syntheses, Characterization and Crystal Structure of Two Manganese(Ⅲ) Complexes with Ligand N,N'-Ethylenebis(1-phenyl-3-imino-1-butanone)

FENG Yun-Long1, LIU Shi-Xiong2   

  1. 1. College of Life and Environment Science, Zhejiang Normal University, Jinhua 321004, China;
    2. Department of Chemistry, Fuzhou University, Fuzhou 350002, China
  • Received:2000-05-30 Online:2001-06-24 Published:2001-06-24

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摘要： 合成了两个N,N'-亚乙基双(1-苯基-3-亚氨基-1-丁酮)(简写为H2bzacen)的锰配合物Mn(bzacen)·(NO2)(EtOH)(1)和Mn(bzacen)(NO2)(MeOH)(2).晶体结构分析表明:配合物1晶体属正交晶系,空间群Pbca,晶胞参数a=2.8173(6)nm,b=2.1946(4)nm,c=0.7683(6)nm,V=4.750(5)nm3,Z=8,μ=5.71cm-1,R=0.0540.配合物2晶体属正交晶系,空间群Pbca,晶胞参数a=2.7641(6)nm,b=2.1832(4)nm,c=0.7705(2)nm,V=4.650(3)nm3,Z=8,μ=5.81cm-1,R=0.0564.在这两个配合物中,Mn(Ⅲ)原子均具有畸变的N2O4八面体配位构型,整个晶体通过分子间氢键作用形成一维的无限链状结构.红外光谱表明,配体在形成配合物后,νC=N,νC=O和νC=C谱带移向低频,NO2-以一个O原子与Mn(Ⅲ)配位.电子光谱表明存在d-d*,π-π*和d-π*的跃迁.

关键词: Schiff碱, Mn(Ⅲ)配合物, 晶体结构, 红外光谱, 电子吸收光谱

Abstract: Two manganese(Ⅲ) complexes with the ligand bzacen2- [bzacen2-=N, N' ethylenebis(1-phenyl-3-imino-1-butanone)], Mn(bzacen)(NO2)(EtOH) (1) and Mn(bzacen)(NO2)(MeOH) (2), have been synthesized and characterized by IR, electronic spectra and cyclic voltammetry. Both complexes crystallize in the orthorhombic system, space group Pbca, with parameters for complex 1: a=2.8173(6)nm, b=2.1946(4)nm, c=0.7683(6)nm, V=4.750(5)nm3, Z=8, μ=5.71 cm-1, and with parameters for complex 2: a=2.7641(6)nm, b=2.1832(4)nm, c=0.7705(2)nm, V=4.650(3)nm3, Z=8, μ=5.81 cm-1. The final Rvalues are 0.0540 for complex 1 and 0.0564 for complex 2, respectively. The structure determination of the title complexes reveals an octahedral coordination with an N2O2 equatorial plane composed of the donor atoms from the Schiff base ligand bzacen2-. In these complexes, νC=N, νC=O and νC=C are shifted to lower frequencies in IRspectra; π-π* transitions, d-π* charge transitions and d-d* ligand field transitions are observed in their electronic spectra.

Key words: Schiff base, Manganses(Ⅲ) complex, Crystal structure, IR spectroscopy, Electronic absorption spectroscopy

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