Crystallographic and spectroscopic studies of luminescent copper(I) complex [(PPh_3)_2Cu(S_2COMe)]-Insertion reaction of carbon disulfide

摘要

The luminescent copper(I) complex [(PPh_3)_2Cu(S_2COMe)] has been obtained by treating [(PPh_3)_2Cu(NO_3)l with carbon bisulfide in a mixed solvent of methanol and dichloromethane at room temperature.The complex has been characterized by physico-chemical and spectroscopic methods,and has been found to exhibit photoluminescence behaviour at room temperature.The structure of the complex has been determined by X-ray structure analysis.The crystal is orthorhombic,space group P2_12_12_1,with parameters a=9.513(2) A,b=18.075(4) A,c=19.968 A,V=3433.4(12) A~3,Z=4,F(000)=1440,D_(calcd.)=1.345 Mg/m~3,mu=0.880 mm~(-1),R=0.0487,R_w=0.0935.The results show that PPh_3 coordinates as monodentate ligand to the copper(I) atoms,and MeCOS_2~- behaves as a bidentate ligand in the prepared complex.Hence,each copper atom has a CuP_2S_2 tetrahedron coordination skeleton.