双-(磷酸二甲酯)合铜的红外光谱与晶体结构  

INFRARED SPECTRA AND CRYSTAL STRUCTURE OF BIS-(DIMETHOXYLPHOSPHATO)COPPER

作　　者：曾广赋[1] 郭鑫[1] 王翠英[1] 林永华[1] 李涵[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《物理化学学报》1992年第6期778-782,共5页Acta Physico-Chimica Sinica

摘　　要：合成了单元化学式为-Cu[(CH_3O)_2PO_2]_2-的铜(Ⅱ)与磷酸二甲酯的配位聚合物。测定了4000—100cm^(-1)谱区内的红外光谱,讨论了某些谱带的归属,解释了配位化合物形成后的光谱变化。由单晶X-射线衍射法确定此配合物的晶体属单斜晶系,空间群为P2_1/c,晶胞参数a=1.0704(4),b=0.5093(2),c=1.9737(6)nm;β=96.23(3)°;V=1.0696(6)nm^3;Z=4.M=313.5,F(000)=636e,D_c=1.943g·cm^(-3)。铜与五个配体中的五个非酯氧配位成四角锥体,相邻两铜原子以对称的“O—P—O”桥和不对你的“O—P—O”桥相连,形成一维链状配位聚合物。The title complex has been synthesized by the reaction of CuCl_2 with trimethylphosphate. Its Infrared spectra from 4000 to 100 cm^(-1) were measured.The assignmentof some absorption bands was discussed. It is found that the stretching vibrations ofbridge groups O--P--O are divided into two groups according to tbeir bond length.The crystal structure of the complex has been determined from single crystal X-raydiffraction data. The crystals belong to monoclinic system, space group P2_1/c withcell parameters: a=1. 0704(4), b=0. 5093(2), c=1. 9737(6)nm, β=96. 23(3)°,V=1. 0696(6)nm^3, Z=4, final R=0. 044. Copper ion is coordinated to five nonesteroxygen atoms to form a distorted square pyramid. The adjacent copper ions are con-nected by symmetric and non-symmetric bridge groups of O--P--O, forming an in-finite one-dimensional chain coordination polymer.

关 键 词：红外光谱 晶体结构 铜络合物 

分 类 号：O614.121[理学—无机化学]