The complexes [Pt(CN)H2X(PEt3)2](X = Cl, Br, or I) have been identified by 1H and 31P n.m.r. spectroscopy at –80 °C as the initial products from the reaction of trans-[Pt(CN)H(PEt3)2] and HX. Similarly, [PtH(PEt3)3]+ and HCl yield [PtClH2(PEt3)3]+. In this case deuterium substitution indicates trans addition, but with the cyanide no distinction of cis or trans addition is possible. The platinum(IV)
络合物[Pt(CN)H 2 X(PEt 3)2 ](X = Cl,Br或I)已通过–80°C的1 H和31 P nmr光谱鉴定为反式-[Pt(CN)H(PEt 3)2 ]和HX。同样,[PtH(PEt 3)3 ] +和HCl产生[PtClH 2(PEt 3)3 ] +。在这种情况下,
氘取代表示反式加成,但
氰化物不能区分顺式或反式加成。
铂金(IV)
氰化物不会歧化,在升温至室温后会生成反式-[Pt(CN)X(PEt 3)2 ]的混合配合物。