elemental analysis and (in some cases) i.r. spectroscopy. These ions apart from [P(C6F5)2(CN)Y]–} represent the first simple phosphoranides with an organo-group attached to phosphorus and no cyano-groups present. The species with two pentafluorophenyl groups are the first phosphoranides with two organo-groups directly bound to phosphorus. No acceptor properties towards halide ions were shown by P(CCl3)Cl2
[P(C 6 F 5)X 2 Y] –(X = Cl,Y = Cl,Br或I; X = Br,Y = Br或I; X =
NCS, Y = Cl,Br,I或
NCS)或[P(C 6 F 5)2 X(Y)] –(X = Cl,Y = Cl,Br或I; X = Br,Y = Br或I ; X = CN,Y = Cl,Br,I或
NCS)已通过31 P nmr光谱法在溶液中鉴定。大多数物种已分离为与四烷基
铵离子的盐,并通过元素分析和(在某些情况下)红外光谱进一步表征。这些离子除[P(C 6 F 5)2(CN)Y] – }代表第一个简单的
磷酰胺,其有机基团与
磷相连,并且不存在
氰基。具有两个
五氟苯基的物质是具有两个直接键合于
磷的有机基团的第一
磷酰胺。P(CCl 3)Cl 2或P(C 6 F 5)2(
NCS)没有显示出对卤离子的受体性质。