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首页> 中文期刊> 《无机化学学报》 >吡啶取代苯酚配体构建的三个配合物的晶体结构

吡啶取代苯酚配体构建的三个配合物的晶体结构

         
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摘要

以2-(N,N-二(2-吡啶甲基)氨甲基)-6-醛基-4-甲基苯酚(HL)为配体合成了一个新的双核钙配合物[Ca2L2(NO3)2] (1)和一个单核镉配合物[Cd(HL)(NO3)2] (2),在碱性条件下,2能转化为双核镉配合物[Cd2L2(NO3)2]· H2O (3).分别对它们进行了红外、质谱、元素分析和单晶结构表征.配合物1和3属于单斜晶系,空间群分别为P21/c和C2/c,配合物2属于三斜晶系,空间群为P(l).单晶结构表明,配合物1含有一个酚氧桥连的双核钙单元[Ca2O2],每个钙均为八配位的扭曲十二面体构型[CAN3O5],配位原子分别来自一个配体L-的3个氮原子和一个酚氧原子、另一个配体L-的一个酚氧原子和一个醛氧原子以及一个硝酸根的2个氧原子.2是一个单核镉配合物,八配位镉的配位构型是扭曲的十二面体[CdN3O5],配位原子分别来自配体HL的3个氮原子和一个酚氧原子以及2个硝酸根的4个氧原子,醛基不参与配位.配合物3含有一个酚氧桥连的双核镉单元[Cd2O2],每个镉均为七配位的单帽三棱柱构型[CdN3O4],配位原子分别来自一个配体L-的3个氮原子和一个酚氧原子、另一个配体L-的一个酚氧原子和一个醛氧原子以及一个硝酸根的一个氧原子.%A novel binuclear calcium complex [Ca2L2(NO3)2] (1) and a mononuclear cadmium complex [Cd(HL) (NO3)2] (2) have been successfully synthesized by using 2-(N,N-di(2-pyridylmethyl)aminomethyl)-6-aldehydo-4-methylphenol (HL) as a ligand.Complex 2 can be transformed to a binuclear cadmium complex [Cd2L2(NO3)2]·H2O (3) under basic conditions.Complexes 1～3 have been characterized by FT-IR,ESI-MS,elemental analysis and single-crystal X-ray diffraction.Both 1 and 3 crystallize in monoclinic system,but with space group P21/c and C2/c,respectively,while 2 in triclinic system with space group P(1).X-ray crystallography analysis reveals that 1 has a bi-calcium unit [Ca2O2] bridged by two phenolato O atoms,and each eight-coordinated Ca(Ⅱ) cation shows a distorted dodecahedron configuration [CaN3O5] with three N atoms and one phenolato O atom from one L-,one phenolato O atom and an aldehyde O atom from another L-ligand,and two O atoms from one nitrate.2 is a mononuclear cadmium complex and Cd(Ⅱ) cation is eight-coordinated by three N atoms and one phenol O atom from HL ligand and four O atoms from two nitrates to show a distorted dodecahedron configuration [CdN3O5],whereas the aldehyde group does not take part in coordination.3 contains a bi-cadmium unit [Cd2O2] bridged by two phenolato O atoms,and each seven-coordinated Cd(Ⅱ) cation shows a distorted monocapped trigonal prism configuration [CdN3O4] with three N atoms and one phenolato O atom from one L-,one phenolato O atom and an aldehyde O atom from another L-ligand,and one O atom from one nitrate.

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  • 来源
    《无机化学学报》 |2019年第7期|1312-1320|共9页
  • 作者

    YU Zhu; BAI Jian; WANG Han-Hui; CAO Ying; ZHU Dun-Ru;

  • 作者单位

    College of Chemical Engineering;

    State Key Laboratory of Materials-Oriented Chemical Engineering;

    Nanjing Tech University;

    Nanjing 211816;

    China;

    College of Chemical Engineering;

    State Key Laboratory of Materials-Oriented Chemical Engineering;

    Nanjing Tech University;

    Nanjing 211816;

    China;

    College of Chemical Engineering;

    State Key Laboratory of Materials-Oriented Chemical Engineering;

    Nanjing Tech University;

    Nanjing 211816;

    China;

    College of Chemical Engineering;

    State Key Laboratory of Materials-Oriented Chemical Engineering;

    Nanjing Tech University;

    Nanjing 211816;

    China;

    College of Chemical Engineering;

    State Key Laboratory of Materials-Oriented Chemical Engineering;

    Nanjing Tech University;

    Nanjing 211816;

    China;

    State Key Laboratory of Coordination Chemistry;

    Nanjing University;

    Nanjing 210023;

    China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 钙Ca;镉Cd;
  • 关键词

    合成; 钙配合物; 镉配合物; 转化; 晶体结构;

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