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合成了 trans-PtHX(AsPh_3)_2(X=Cl~-、Br~-、I~-、SCN~-)四个配合物,除 trars-PtHCl(AsPh_3)_2外,其余三个为新配合物。用 NMR 和 IR 谱鉴定了结构和 trans-PtHSCN(AsPh_3)_2 的键合异构。研究了配体(X)对铂-氢化学位移(δ_H)和铂-氢偶合常数(J_(Pt-H))的影响、铂-氢键键长与铂-氢化学位移(δ_H)的关系以及铂-氢化学位移(δ_H)与铂-氢伸展振动频率的相关性。发现 trans-PtHCl(AsPh_3)_2 在不同溶剂中的重结晶产物,其 Pt-H 键的红外伸展振动频率不同,而 ~1HNMR 谱(在 CDCl_3 中)完全一样。
Four complexes of trans-PtHX (AsPh_3) _2 (X = Cl ~ -, Br ~ -, I ~ -, SCN ~ -) were synthesized and the other three were new complexes except trars-PtHCl (AsPh_3) _2 . The structure and the bonding isomerism of trans-PtHSCN (AsPh_3) _2 were identified by NMR and IR spectra. The effect of ligand (X) on the chemical shift of platinum - hydrogen (δ_H) and the platinum - hydrogen coupling constant (J_ (Pt - H)) and the relationship between the platinum - hydrogen bond length and the chemical shift of platinum - hydrogen And the dependence of platinum-hydrogen chemical shifts (δ_H) on the frequency of platinum-hydrogen stretching vibration. It was found that the recrystallization products of trans-PtHCl (AsPh_3) _2 in different solvents had different frequency of infrared stretching vibration of Pt-H bond, and the ~ 1HNMR spectrum (in CDC_3) was exactly the same.