两个单核镉配合物Cd(2-SC_5H_4NH)_2I_2和Cd(2-SC_5H_3NH-3-CH_3)_2I_2的合成与晶体结构  

Syntheses and Crystal Structures of Two Mononuclear Complexes Cd(2 -SC_5H_4NH)_2I_2 and (2- SC_5H_3NH 3 CH_3)_2I_2

作　　者：萧岭梅[1] 高红核[1] 郭欣[1] 耿哲[1] 刘顺成[1] 

机构地区：[1]首都师范大学化学系,北京100037

出　　处：《首都师范大学学报（自然科学版）》2002年第4期44-47,50,共5页Journal of Capital Normal University：Natural Science Edition

摘　　要：以 2 巯基吡啶及它的衍生物 3 甲基 2 巯基吡啶为配体 ,合成了两个结构类似的单核镉配合物Cd(2 SC5H4 NH) 2 I2 和Cd(2 SC5H3NH 3 CH3) 2 I2 ,并用X射线单晶衍射法测定了晶体结构 .The title complexs,Cd(2 SC 5H 4NH) 2I 2 and Cd(2 SC 5H 3NH 3 CH 3) 2I 2,were synthesized through the reaction of CdI 2 with pyridine 2 thiol and 3 methyl pyridine 2 thiol in methanol.They were characterized by X ray diffraction analysis.The crystal of compound 1 belongs to orthorhomic system,with space group Fdd2, a =1 344?8(3)nm, b =2 989?7(6)nm, c =0 805?0(2)nm, V =3 236 5nm ~3, D c=2 416?g/cm ~3, Z =8.The final R is 0 030?7 for 774 unique reflections.The crystal of compound 2 belongs to triclinic system,with space group P 1 , a =1 016?4(2)nm, b =1 178?7(2)nm, c =0 818?4(3)nm, α =90 88(3)°, β =196 54(3)°, γ =72 60(3)°, V =0 894?3(3), D c=2 290?g/cm ~3, Z =2.The final R is 0 027?3 for 3?144 unique reflections.In the two mononuclear complexes,the metal atom is coordinated with two I atoms and two S atoms in the neutral thione form.The molecular structure consists of discrete neutral mononuclear units with the Cd center in distorted tetrahedral[CdI 2S 2] environments.Each Cd atom is coordinated by twoterminal I atoms and a sulphur donor atom from pyridine 2 thiol and 3 methyl pyridine 2 thiol ligands.

关 键 词：单核镉配合物 Cd(2-SC5H4NH)2I2 Cd(2-SC5H3NH-3-CH3)2I2 合成 晶体结构 含硫配体 配位化学 吡啶 

分 类 号：O614.242[理学—无机化学] O62[理学—化学]