Abstract In this review, the structural parameters of distortion isomers of cis-monomeric Pt(II) coordination complexes with inner coordination spheres: Pt(PL)2X2 (X = OL, NL, SL, Br, I); Pt(PL)2(η2-X2L) (X = O2L, N2L, S2L, OSL, NSL, NSeL); Pt(η2-P2L)X2 (X = Br, I); Pt(η2-P2L)(η2-X2L) (X = O2L, OSL, NSL); Pt(η2-P2L)(NL)(Cl) and Pt(PL)(η2-P,SiL)(H) are analyzed. None of the distortion isomers with cis-configuration has a trans-partner. The distortion isomers differ mostly by the degree of distortion in the Pt-L and L-Pt-L angles. Some of the isomers also differ by crystal packing. The total mean values of Pt-P (monodentate) and Pt-P (bidentate) bond distances are 2.279 Å and 2.244 Å, respectively. The mean value of Pt-P (monodentate) (trans to H¯) of 2.320 Å is the highest one because of higher trans-influence of H¯ over PP3. The total mean values of Pt-X (trans to P) elongate quite well with the covalent radius of the X in the sequence: 1.57 Å (X = H) < 2.062 Å (O2L) < 2.095 Å (OL) < 2.108 Å (NL) < 2.154 Å (N2L) < 2.329 Å (Cl) < 2.342 Å (S2L) < 2.347 Å (SL) < 2.480 Å (Br) < 2.616 Å (I).

中文翻译：

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cis-PtP2X2 和 cis-PtP2XY 衍生物的畸变异构体——结构方面

摘要 本文综述了具有内部配位球的顺式单体Pt(II)配位配合物的畸变异构体的结构参数：Pt(PL)2X2 (X = OL, NL, SL, Br, I); Pt(PL)2(η2-X2L)（X = O2L、N2L、S2L、OSL、NSL、NSeL）；Pt(η2-P2L)X2 (X = Br, I); Pt(η2-P2L)(η2-X2L) (X = O2L, OSL, NSL); 分析了 Pt(η2-P2L)(NL)(Cl) 和 Pt(PL)(η2-P,SiL)(H)。具有顺式构型的变形异构体都没有反式伙伴。变形异构体的主要区别在于 Pt-L 和 L-Pt-L 角的变形程度。一些异构体还因晶体堆积而异。Pt-P（单齿）和 Pt-P（双齿）键距的总平均值分别为 2.279 Å 和 2.244 Å。Pt-P (monodentate) (trans to H¯) 的平均值为 2.320 Å 是最高的，因为 H¯ 对 PP3 的反式影响更大。