苯基锗糠基羧酸衍生物的合成、性质及三苯基呋喃甲酸锗的晶体结构

Synthesis and Properties of Phenylgermanium Derivatives of Furfuryl CarboxylicAcid and Crystal Structure of Triphenylgermanium 2-Furan-Carboxylate

利用二或三苯基氯化锗与糠基羧酸钠反应,合成了9种苯基锗糠基羧酸衍生物。通过元素分析、红外光谱、核磁共振氢谱和质谱对其结构进行表征。用X-射线单晶衍射测定了三苯基呋喃甲酸锗的晶体结构。晶体属于单斜晶系,空间群P21/c,a=1.1945(4),b=0.9934(3),c=1.6284(5)nm,β=91.59(5)°,Z=4。在该化合物中,四配位的锗原子呈畸变的四面体构型。

The nine phenylgermanium derivatives of furfuryl carboxylic acid were synthesized by reaction of triphenylgermanium chloride and diphenylgermanium dichloride with sodium furfuryl carboxylate. Their structure were characterized by elemental analysis, IR,H-1 NMR and MS. The crystal structure of triphenylgermanium 2-furoate was determined by X-ray single crystal diffraction. The crystal belongs to monoclinic with space group P2(1)/ c, a = 1.1945(4)nm, b = 0.9934(3)nm, c = 1.6284(5) nm, beta = 91.59(5)degrees, V = 1.9317(11)nm(3), D-cal = 1.427Mg . m(-3), F(000) = 848, Z = 4. The germanium atom in this structure is in a distorted tetrahedron.