Adducts of organogermanium and organotin chlorides with triphenylphosphine oxide and hexamethylphosphoramide
作者:J.N. Spencer、Suzanne M. Coley、Julie C. Otter、Alex Grushow、Belinda G. Enders、Warren L. Nachlis、Claude H. Yoder
DOI:10.1016/0022-328x(88)80111-6
日期:1988.5
organogermanium and organotin chlorides toward the Lewis base hexamethylphosphoramide ([(CH3)2N]3PO, HMPA) were determined by monitoring the 31P chemical shifts of the base in equimolar mixtures with the acids. Similar calorimetric studies were made on the acidities of organogermanium chlorides toward triphenylphosphine oxide (TPPO). Previously reported calorimetric and NMR data for organotin chloride adduct
通过监测碱与酸等摩尔混合物中31 P的化学位移,可以确定几种有机锗和有机锡氯化物对路易斯碱六甲基磷酰胺([(CH 3)2 N] 3 PO,HMPA)的酸度。对有机锗氯化物对三苯膦氧化物(TPPO)的酸度进行了类似的量热研究。以前报道的与TPPO形成有机氯化锡加合物的量热法和NMR数据表明,HMPA是比TPPO更强的碱。NMR和量热法均未检测到有机锗化合物与TPPO,HMPA和DMSO碱形成的加合物的形成。