NMR and Raman spectroscopy. In the case of Ph2P(I2)(CH2)nP(I2)Ph2 (n = 2 or 4), 31P-H} NMR magic angle spinning NMR spectroscopy has been used to investigate the nature of the compounds in the solid state. In agreement with our previous extensive studies on the monophosphine derivatives, R3PI2, the tetraiododiphosphine compounds Ph2P(I2)(CH2)nP(I2)Ph2 (n = 2 or 4) isolated from diethyl ether contain
一系列二叔膦-四
碘加合物R 2 P(I 2)(CH 2)n P(I 2)R 2(R = Ph,n = 1-4; R = PhCH 2或邻-CH 3 C 6 H 4,n = 2)和两个三叔膦-己
碘加合物PhP(CH 2 CH 2 PPh 2)2 I 6和CH 3 C(CH 2 PPh 2)3 I 6已通过31 P- H}溶液NMR和拉曼光谱进行了制备和表征。在Ph 2 P(I 2)(CH 2)n P(I 2)Ph 2(n = 2或4)的情况下,已使用31 P- H} NMR魔角旋转NMR光谱研究了性质固态的化合物。与我们先前对单膦衍
生物R 3
PI 2的广泛研究相一致,四
碘二膦化合物Ph 2 P(I 2)(CH 2)n P(I 2)Ph 2 从二
乙醚中分离出来的(n = 2或4)包含分子四坐标的
磷中心,二
碘以线性辐条键合到该中心,如在CDCl 3溶液中获得的31 P- H} NM