新型异金属三羰基铼配合物的合成及光学性质研究  

Synthesis and Optical Properties of a Novel Rhenium(Ⅰ) Complex Containing Three Carbonyl Groups and Hetero-metal Element

作　　者：张睿[1] 顾晓龙[1] 庞欢[2] ZHANG Rui;GU Xiaolong;PANG Huan(School of Biological and Chemical Engineering,Yangzhou Polytechnic College,Yangzhou 225009;College of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou 225002)

机构地区：[1]扬州市职业大学生物与化工工程学院,扬州225009 [2]扬州大学化学化工学院,扬州225002

出　　处：《材料导报》2018年第8期1252-1257,1262,共7页Materials Reports

基　　金：国家自然科学基金(21671170)

摘　　要：将双吡啶基多硫桥式配体(Ⅲ)依次与Ni(dbbpy)Cl2(dbbpy=4,4′-二叔丁基-2,2′-联吡啶)、Re(CO)_5Cl反应,合成了一个新型的双核卤化三羰基一价铼异金属配合物(2)及其前体配合物(1)。采用~1H NMR、IR、MS和元素分析表征1和2的结构,并解析了二者的晶体结构,初步测定了其光学性质。结果表明,配合物1和2的CH_2Cl_2溶液在250~305nm附近有很强的吸收带,摩尔消光系数级数为104,但未观测到二者发射荧光。最后在密度泛函(DFT)水平上研究了配合物1和2的基态轨道能量。In this paper,a novel rhenium(Ⅰ)complex(2)containing three carbonyl groups and another metal element,along with its precursor complex(1),were synthesized by the sequential reactions of bipyridyl polysulfide ligand(Ⅲ)with Ni(dbbpy)Cl 2(dbbpy=4,4′-di-tert-butyl-2,2′-bipyridine)and Re(CO)5Cl.1H NMR,IR,MS and elemental analysis were employed to characte-rize the molecular structures of 1 and 2,and moreover,their crystallographic structures and optical properties were also investigated.Both 1 and 2 in CH 2Cl 2 exhibit significant responses in the wavelength range of 250-305 nm with the molar extinction coefficients at 10 4 level,but no fluorescence was observed.Finally we discussed the ground orbital energy of 1 and 2 via the density functional theory(DFT).

关 键 词：异金属三羰基铼配合物 双吡啶基多硫桥式配体 光学性质 密度泛函(DFT) 

分 类 号：O61[理学—无机化学]