钴(Ⅱ)-吡唑配合物的合成、结构与光谱特性  

Synthesis,Structure and Spectra Characters ofPyrazole-based Cobalt( Ⅱ) Coordination Complexes

作　　者：李彦冰 刘聪[2] 张芯瑞 韦思跃 任冬雪[2] 邢永恒[2] 孙巧[3] 

机构地区：[1]大连天宇制药有限公司,辽宁大连116023 [2]辽宁师范大学化学化工学院,辽宁大连116029 [3]昆士兰大学生物工程及纳米科技学院计算分子科学研究中心

出　　处：《平顶山学院学报》2014年第2期50-55,共6页Journal of Pingdingshan University

摘　　要：为了深入研究吡唑环4位碘取代基对钴配合物的光谱性质及金属配位环境的影响,设计、合成了两个含吡唑类配体的钴配合物:[Co(pz)4]Cl2(1),[Co(4I-pz)4Cl2]2·2H2O(2)(pz=pyrazole,4I-pz=4-iodo-1H-pyrazole),并利用元素分析和X-ray单晶衍射方法确定了配合物的晶体结构.通过红外光谱和紫外光谱的比对分析,表明吡唑环上取代基的存在确实对配合物的光谱性质及金属配位微环境有影响,且量化计算结果也证明了这一结论.In this paper,we designed and prepared two cobalt complexes containing pyrazole-based ligands： [Co（ pz）4]Cl2（ 1） and [Co（ 4I-pz）4Cl2]2·2H2O（ 2）（ pz = pyrazole,4I-pz = 4-iodo-1H-pyrazole） so as to further investigate the influence of pyrazole with iodine substituted on spectra property and coordination environment of cobalt complexes. Their crystal structures were determined by element analysis and X-ray diffraction. Through contrast analysis of IR and UV-Vis spectra,it is shown that the presence of substituted group on 4-position of pyrazole ring indeed influences spectral properties and coordination environment of center metal cobalt,and the conclusion has been confirmed by quantum chemistry calculation results.

关 键 词：钴配合物 吡唑衍生物 合成 结构 光谱 

分 类 号：O627.12[理学—有机化学]