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新型三吡唑硼酸根和二吡唑硼酸根混合配体“三明治”型铜(Ⅱ)配合物

A Novel Mixed Ligands Sandwich Copper (Ⅱ) Complex with Hydrotris(pyrazolyl)borate and Bihydrobis(pyrazolyl)borate
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摘要 合成了一种新型Ⅱ三吡唑硼酸根和二吡唑硼酸根混合配体的“三明治”型铜(Ⅱ)配合物[TpCu^ⅡBp](Tp:三吡唑硼酸根,hydrotris(pyrazolyl)borate;Bp:二吡唑硼酸根,bihydrobis(pyrazolyl)borate)。配合物的晶体结构由单晶X射线衍射确定,配合物属于正交晶系,Pbca空间群,其晶胞参数为a=1.5411(4)nm,b=1.3659(4)rim,c=1.8732(5)nm,Z=8,R1=0.0417,wR2=0.0856.配合物中Cu(Ⅱ)分别与Tp的三个吡唑环上的三个N原子、Bp的两个吡唑环上的两个N原子配位,形成变形四方锥配位环境(τ=0.069),Tp的一个吡唑环上的N(5)原子占据着轴向位置。用红外光谱、紫外-可见光谱、电子顺磁共振等对配合物进行了表征。 A novel mixed ligands sandwich copper (Ⅱ) complex with hydrotris (pyrazolyl) borate and bihydrobis (pyrazolyl) borate ligands [TpCuBp] (Tp : hydrotris (pyrazolyl) borate Bp: bihydrobis(pyrazolyl)borate) was synthesized. The structure of the complex has been determined by X-ray single crystal diffraction. The complex crystallizes in the orthorhombic system, space group Pbca, a=1. 541 1(4) nm, b=1. 365 9(4) nm, c=-1. 873 2(5) nm, Z=8, R1=0. 041 7, wR2=0. 085 6. The copper(Ⅱ) ion in the complex is coordinated to three nitrogen atoms of three pyrazoles of Tp and two nitrogen atoms of two pyrazoles of Bp to form a distorted square pyramidal geometry. The N(5) atom of one pyrazole of Tp occupied the axial position. The IR, UV-vis, and ESR spectroscopy of the complex have been investigated.
作者 孙英姬
出处 《南开大学学报(自然科学版)》 CAS CSCD 北大核心 2009年第2期54-58,63,共6页 Acta Scientiarum Naturalium Universitatis Nankaiensis
基金 国家自然科学基金(20641002 20771020) 国家自然科学基金委员会(NSFC)与韩国科学与工程基金会(KOSEF)合作研究项目 教育部留学回国人员科研启动基金 大连理工大学引进人才科研启动基金
关键词 晶体结构 铜(Ⅱ)配合物 三吡唑硼酸根 二吡唑硼酸根 “三明治”型配合物 crystal structure copper (Ⅱ) complex hydrotris (pyrazolyl)borate bihydrobis (pyrazolyl) borate sandwich complex
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