Butterfly and Nest-Shaped Tp*-W-Cu-S Cluster Monomers and Dimers with Hexamethylenetetramine as Ligand:Anion-Dependent Structures and Nonlinear Optical Properties  

作　　者：Quan Liu Mingie Lu Lice Yu Yinglin Song Jianping Lang 

机构地区：[1]College of Chemistry and Chemical Engineering,Nantong University,Nantong,Jiangsu 226019,China [2]College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou,Jiangsu 215123,China [3]School of Physical Science and Technology,Soochow University,Suzhou,Jiangsu 215006,China

出　　处：《Chinese Journal of Chemistry》2021年第3期647-654,共8页中国化学（英文版）

基　　金：the National Natural Science Foundation of China(No.21701089).

摘　　要：Main observation and conclusion The assembly of[Et4N][Tp*WS3](1)with CuX(Tp*=hydridotris(3,5-dimethylpyrazol-1-yl)borate;X=Cl,Br,andI)or[Cu(MeCN)][PF6]in the presence of tetratopic ligand hexamethylenetetramine(HMT)afforded an array of four cluster-based compounds,which are either neutral or anionic.These compounds include[Tp*WSzCu3Cl2(HMT)](2,monomer,neutral),[Tp*WSzCugBr2(HMT)](3,monomer,neutral),[Tp*WSzCu3l1 s(HMT)21(4,dimer,anionic),and[Tp*WSzCu2(HMT)]2(PFc)2(5,dimer,anionic).The size of the halogen is found to dictate the structures(2/3 versus 4),and the presence/absence of halogen also affects the utiliation of coordinate site of HMT(4 versus 5)by creating more available CuOite in the case of 5.The structures of 2-5 are also characterized using elemental analysis,Fourier-transform infrared(FT-IR)spectra,and ultraviolet-visible(UV-Vis)spectroscopy,with the dimeric structure of 5 also selected for the third-order nonlinear optical(NLO)property investigations.The NLO measurement results suggest that the hyperpola rizability value(v)of 5,reflecting its NLO properties as a neat material,features 2.12×10^(-30)esu,and it is comparable to other W/Cu/S clus-terbased molecular entities,rendering 5 a promising NLO-active material.

关 键 词：W/Cu/S cluster HEXAMETHYLENETETRAMINE HALOGENS Crystal growth Nonlinear optics 

分 类 号：O62[理学—有机化学]