Synthesis of Aminoiminophosphoranate Complexes of Palladium and Platinum and X-ray Diffractional Investigation of the Weak C−H···Pd Interactions Affecting the Geometry of the PdNPN Metallacycles
作者:Tat’yana A. Peganova、Anna V. Valyaeva、Alexander M. Kalsin、Pavel V. Petrovskii、Alexandra O. Borissova、Konstantin A. Lyssenko、Nikolai A. Ustynyuk
DOI:10.1021/om900185r
日期:2009.5.25
specific weak interactions C−H···Pd were detected in the crystals of both (NPN)Pd(PPh3)Cl (intramolecular) and (NPN)2Pd (intermolecular). The topological analysis of electron density function ρ(r) within the AIM theory performed for (NPN)2Pd allowed us to analyze the peculiarities of the chemical bonding of the NPN ligand and to estimate the energy of the intermolecular C−H···Pd interaction as 0.8 kcal/mol
新aminoiminophosphoranate(κ 2 - (N,N) - (NC 6 H ^ 4我-PR - p)2 PPH 2,NPN)络合物(NPN)的Pd(PPh 3)氯,(NPN)2的Pd,(NPN)铂(η 2 -C 2 H ^ 4)Cl和(NPN)的Pt(PPH 3)氯中以高产率制备选自阴离子[NPN] Li和相应的过渡金属氯化物的前体。(PhCN)2 PdCl 2与氨基亚氨基正膦[NPN] H反应,得到双亚氨基配合物Pd [[NPN] H} 2 Cl 2收率达82%。报告了所有钯配合物的X射线结构,并且在(NPN)Pd(PPh 3)Cl(分子内)和(NPN)2 Pd(分子间)晶体中检测到特定的弱相互作用CH···Pd )。在AIM理论中对(NPN)2 Pd进行电子密度函数ρ(r)的拓扑分析,使我们能够分析NPN配体化学键的特殊性并估计分子间CH-H···的能Pd相互作用为0