Cloete Nicoline, Visser Hendrik G, Roodt Andreas
Department of Chemistry, University of the Free State, PO Box 339, Bloemfontein 9300, South Africa.
Acta Crystallogr Sect E Struct Rep Online. 2009 Dec 12;66(Pt 1):m51-2. doi: 10.1107/S160053680905301X.
The Pt(II) atom in the title compound, [PtCl(2)(C(27)H(27)NP(2))], has a highly distorted square-planar geometry, as evidenced by the P-Pt-P bite angle [72.4 (1)°]. The strain in the complex is further illustrated by the distorted tetra-hedral angles of the P atoms, which range between 93.5 (1) and 122.2 (1)°. It is of inter-est to note that the N atom has to adopt an almost planar geometry with the two P atoms and the C atom attached to it [it is displaced by 0.093 (2) Å from the CP(2) plane] in order to accommodate the steric bulk of the phenyl groups and the alkyl group of the ligand coordinated to the Pt(II) centre. The mol-ecules pack in horizontal rows across the bc plane. C-H⋯Cl hydrogen bonds stabilize the crystal packing.
在标题化合物[PtCl₂(C₂₇H₂₇NP₂)]中，Pt(II)原子具有高度扭曲的平面正方形几何构型，这由P-Pt-P键角[72.4 (1)°]得以证明。配合物中的应变通过P原子扭曲的四面体角进一步体现，其范围在93.5 (1)°至122.2 (1)°之间。值得注意的是，N原子必须与两个P原子及与之相连的C原子采取近乎平面的几何构型[它相对于CP₂平面位移了0.093 (2) Å]，以便容纳与Pt(II)中心配位的配体的苯基和烷基的空间体积。分子在bc平面上以水平行堆积。C-H⋯Cl氢键稳定了晶体堆积。
