N,N',N″-三-(2-羟基丙基)-1,4,7-三氮杂环癸烷钴(Ⅱ)配合物的合成及其结构表征

doi:10.11944/j.issn.1000-0518.2016.02.150236

摘要/Abstract

摘要：

合成了侧臂带有醇羟基的十元环大环三胺衍生物配体N,N',N″-三-(2-羟基丙基)-1,4,7-三氮杂环癸烷(L)及它的过渡金属配合物[CoL][ClO₄]₂,利用元素分析、红外光谱以及热重分析等技术手段对其结构进行了表征,并测定了配合物的晶体结构。解析结果表明,配合物属于Monoclinic晶系,P2(1)/n空间群,中心的Co(Ⅱ)原子为六配位,处于一个畸变的三棱柱配位环境。其中6个配位原子分别来自配体的3个N原子和3个O原子。平均的Co—N键长和Co—O键长分别为:0.2114(6)和0.2097(6) nm。高氯酸根中的3个氧原子分别与邻近的配合物阳离子中的3个O原子通过氢键O••••H—O连接起来,形成了一个具有规则结构的超分子网络结构。

关键词: 大环三胺衍生物, 合成, 晶体结构, 钴(Ⅱ)配合物

Abstract:

One novel macrocyclic triamine derived ligand N,N',N″-tris(2-hydroxypropyl)-1,4,7-triazacyclodecane and its transition metal complexes, [CoL] [ClO₄]₂ were synthesized and characterized by physico-chemical and spectroscopic methods. The crystal structure of [CoL][ClO₄]₂ was determined. The complex belongs to crystallographic system of monoclinic and space group:P2/N(1). The complex is hexacoordinate and the center Co atom exists in a distortion three prism coordination environment. The six coordinating atoms come from three nitrogen atoms and three oxygen atoms of the ligand. The average Co—N bond length and Co—O bond length are 0.2114(6) nm and 0.2097(6) nm, respectively. A regular supramolecular network structure are formed through the hydrogen bonding O••••H—O between three oxygen atoms of the perchlorate with three oxygen atoms of the neighboring ligands.

Key words: m-acrocyclic triamine derivative, synthesis, crystal structure, Co(Ⅱ) complex

郭惠, 张珂瑶, 李娜, 张栓. N,N',N″-三-(2-羟基丙基)-1,4,7-三氮杂环癸烷钴(Ⅱ)配合物的合成及其结构表征[J]. 应用化学, 2016, 33(2): 200-205.

GUO Hui, ZHANG KeYao, LI Na, ZHANG Shuan. Synthesis and Crystal Structure of N,N',N″-Tris(2-hydroxypropyl)-1,4,7-triazacyclodecane Co(Ⅱ) Complex[J]. Chinese Journal of Applied Chemistry, 2016, 33(2): 200-205.

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