羧乙基三氯化锗的合成,晶体结构及振动光谱

合成了羊皮羧乙基三氯化锗晶体,并用单晶 X—射线衍射法测定了其晶体结构.晶体属单斜晶系,P21/n 空间群,a=6.282(1),6=10.069(2),c=12.196(2)(?),β=101.94(1)°,Z=4,V=820.35(?)~3,D_c=2.041g·cm~(-1).锗原子同三个氯原子及一个羧乙基碳原子相连,形成不规则的四面体几何构型,两分子靠羧基间的氢键缔合成二聚体.测定了该化合物 IR 和 Raman 光谱,对主要谱带进行了归属.

The Synthesis,Crystal Stucture and Vibrational Spectra of Carboxyethyltrichlorogermanium

The title compound was synthesized and the crystal structure has been det--ermined by X-ray diffraction technique.The crystal belongs to monoclinic,P2 1/n space group with a=6.828(1),b=10.069(2),c=12.196(2)(?),Z=4,V==820.3(?)~3,D_c=2.041gcm~(-1),Ge is coordinated by three cl atoms and one Catom in carboxyethyl,forming a irregular tetrahedral geometry.Two moleculesare bound together by hydrogen bonds between the carboxyl groups to form adimer.IR and Raman spectra of the compound have been measured,and vibr--ational analysis and assigment of some spectra also have been given.