含手性膦配体3-MBPA的铂(Ⅱ)配合物的2D NMR研究

NMR STUDIES OF PLATINUM COMPLEX CONTAINING CHIRAL PHOSPHINE LIGANDS 3 MBPA

利用一维和二维ＮＭＲ 技术， 对含有手性膦配体的铂配合物ｔｒａｎｓ［ Ｐｔ（３ＭＢＰＡＨ）２Ｃｌ２］（１） 和ｔｒａｎｓ（Ｐｔ（３ＭＢＰＡ）（３ＭＢＰＡＨ）Ｃｌ）（２） 进行１Ｈ 和１３ＣＮＭＲ 谱分析，否定了化合物（２） 的结构为ｔｒａｎｓ［Ｐｔ（３ＭＢＰＡ）２］ 的可能，归属了所有的１Ｈ 和１３Ｃ ＮＭＲ 谱线。

The \{\}\+1H、\{\}\+\{13\}C and \{\}\+\{31\}P NMR spectra of platinum complexes (1) and (2) have been measured. The analysis of 1D NMR spectra of complex (2) indicates that it is not \[Pt(3-MBPA)\-2\], but \[Pt(3-MBPAH)(3-MBPA)Cl\]. The \{\}\+1H-\+1H COSY and \{\}\+1H-\+\{13\}C HMQC 2D NMR techniques were used to analyze and assign the \{\}\+1H and \{\}\+\{13\}C NMR spectra of platinum complex trans-\[Pt(3-MBPAH)\-2Cl\-2\] (1) and trans-\[Pt(3-MBPA)(3-MBPAH)Cl\] (2). The trans geometry of the complex has been determined by means of the coupling constants (\+1J\-\{P-Pt\},\+2J\-\{P-P\}). \;