【作者】 张千峰； 吴达旭； 洪茂椿； 刘汉钦；

【Author】 Zhang Qianfeng Wu Daxu Hong Maochun Liu Hanqin (State Key Laboratory of Structural Chemistry;Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian,350002)

【机构】 结构化学国家重点实验室中国科学院福建物质结构研究所；

【摘要】 <正>Mo（W）-Cu-S簇合物多年来已被广泛深入的研究,其谱学表征已初步形成规律。但对近几年来刚刚兴起的Mo（W）-Cu-Se簇合物则不同,其IR、UV-Vis谱难以分辨而使在此方面研究受到限制。最近,我们合成了一系列含膦配体Mo-Cu-Se的化合物:{MoSe₃Cu₃X}L₃Q （X=Cl,Br,I;L=PPh₃,PBu₃,PEt₃;Q=O,Se）,测定了它们的X射线单晶结构,并对其³¹P NMR进行了研究。更多还原

【Abstract】 The chemistry of sulfur contained cluster compounds has been an active research area for many years,and the rules on their spectroscopies have been established.However,the corresponding chemistry of selenino-compounds, especial Mo（W）-Cu-Se cluster compounds has been carried out only in last few years.Since the application of both IR and UV-Vis electronic spectroscopies on characterization of these cluster compounds is limited,the NMR technique becomes more powerful.Presently,a series of Mo-Cu-Se complexes containing phosphine ligands have been synthesized and characterized by single crystal X-ray diffraction analyses and ³¹P NMR.spectra in our laboratory.In this paper,we describe their ³¹P NMR spectroscopic properties.For the {MoCu₃Se₃X}（PPh₃）₃Se （X=Cl,Br,I） compounds,their ³¹P NMR chemical shifts increase with the halide anion ligands by the order of CI>Br>I.The variety of ³¹P NMR chemical shifts form the metal atoms and phosphine substitution ligands are also discussed.The other NMR spectra,such as ⁹⁵Mo NMR,can been applied in this field and the work is in progress.更多还原