一维螺旋配合物{[AgL](ClO_4)(H_2O)}_n的合成和晶体结构(英文)  

Synthesis and Crystal Structure of a Helical Silver(Ⅰ)Complex with Dithioether Ligand

作　　者：高倩[1] 谢亚勃[1] 冯建波[1] 陈媛[1] 王道[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100022

出　　处：《南开大学学报（自然科学版）》2007年第6期38-42,共5页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：The Funding Project for Academic Human Resources Development in Institutions of Highter Learning under the Jurisdiction of Beijing Municipaliyt

摘　　要：二硫醚配体2,3-二苯硫甲基喹喔啉与高氯酸银反应合成出配合物{[AgL](ClO_4)(H_2O)}_n.用 X 射线衍射方法测定了配合物的晶体结构.配合物为四方晶系,空间群为 I4(1)/a,晶体学参数:a=2.375 5(2)nm,b=2.375 5(2)nm,c=2.369 5(4)nm,V=13.371(2)nm^3,Z=16.晶体结构研究表明配合物为一维螺旋结构.The reaction of the dithioether ligand, 2,3-bis （phenylthiomethyl）quinoxaline （L） with AgC104, leads to the formation of a novel complex {[-AgL] （ClO4）（H2O）}, （1）, which has been characterized by singlecrystal X-ray diffraction analysis.. Tetragonal, space group I4（1）/a with a=2. 375 5（2）, b=2. 375 5（2）, c=2. 369 5（4） nm, V=13. 371（2） nm3, R=0. 080 7, wR=0. 252 4 and Z=16. Single-crystal X-ray analyses show that complex 1 consists of one-dimensional helical cation chains, ClO4^- anions and H2O molecules. In 1, the coordination geometry of Ag（I） center can be best described as distorted tetrahedral coordination geometry coordinated by two pyridine nitrogens and two sulfur atoms from two distinct L ligands. The ligand is polydentate and adopt N2S2-tetradentate coordination mode to link the AgI centers resulting in an infinite helical chain.

关 键 词：晶体结构 硫醚 银配合物 

分 类 号：O614.121[理学—无机化学] TB333[理学—化学]