A method for the synthesis of [Pt(dpp)2(en)] (dpp = diphenyl phosphato, en = ethane-1,2-diamine) is reported, and the resulting complex characterised spectroscopically. The synthesis involves displacement of chloride ligands using silver(I), and requires non-aqueous media. Density functional studies suggest typical square-planar coordination geometry, with rather weak Pt–O bonds and very strong N–H⋯O hydrogen bonds. Comparison with model complexes suggests that phosphates are weaker ligands to platinum(II) than nitrates, and are therefore likely to be highly reactive.
报告了一种合成 [Pt(dpp)2(en)](dpp =
二苯基磷酸盐,en =
乙烷-1,2-二胺)的方法,并对所得到的配合物进行了光谱表征。合成过程涉及使用
银(I)置换
氯配体,需要在非
水介质中进行。密度泛函研究表明,该复合物具有典型的方平面配位几何结构,
铂-O 键相当弱,而 N-H⋯O 氢键非常强。与模型配合物的比较表明,
磷酸盐是比
硝酸盐更弱的
铂(II)
配体,因此很可能具有高活性。