Synthesis and crystal structures of bismuth(III) complexes with dithiocarbamate [Bi(S_2CNEt_2)_3]_2 and [Bi(S_2CNC_4H_8)_2(NO_3)][l,10-Phen]

摘要

Two novel bismuth(III) complexes with dithiocarbamate,[[Bi(S_2CNEt_2)_3]_2 (1) and [Bi(S_2CNC_4H_8)_2(NO_3)]centre dot[l,10-Phen] (2) have been synthesized.The crystal structures have been determined by X-ray single crystal diffraction.The crystals of complex 1 belong to monoclinic with space group P2_1/c,a=12.625(2),b=13.628(3),c=14.835(3) A,beta=100.002(2)deg,Z=2,V=2513.7(8) A~3,D_c=1.727 mg/m~3,mu=7.517 mm~(-1),F(000)=1280,R=0.0306 and wR=0.0818.In this binuclear complex,the two Bi atoms are seven-coordinated,and each of the two atoms has distorted pentagonal bipyramidal geometry.Each of central Bi atoms is surrounded equatorially by five S atoms and axially by two S atoms.Two of the six bidentate ligands are bridged in such a way that each sulfur atom is simultaneously bonded to both Bi atoms.The crystals of complex 2 belong to triclinic with space group P_1,a=10.10(3),b=10.43(3),c=13.52(3) A,alpha=79.71(4),beta=85.67(4),7=66.29(4)deg,Z=2,V=1284(5) A~3,D_c=1.924 mg/m~3,mu=7.227 mm~(-1),F(000)=724,R=0.0656,wR=0.0997.In this complex,the bismuth atom is eight-coordinated in a capped distorted pentagonal bipyramidal geometry.Around the central Bi atom,three S atoms and two N atoms occupy equatorial positions and one S atom and one O atom occupy axial positions.