Majeed Maitham H, Wendt Ola F
Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124 221 00, Lund, Sweden.
Acta Crystallogr E Crystallogr Commun. 2016 Mar 22;72(Pt 4):534-7. doi: 10.1107/S2056989016004394. eCollection 2016 Apr 1.
The title compound, [PdCl2(C11H9N)(C13H14N2)], represents a new class of palladium-based polymerizable monomer which could give a potentially catalytically active polymer. It was synthesized via transmetallation from the corresponding silver complex. The Pd(II) ion coordinates two Cl anions, one C atom from the N-heterocyclic carbene (NHC) ligand and one N atom from the 4-phenyl-pyridine ligand, displaying a slightly distorted square-planar geometry. The dihedral angle between the imidazole ring and the pyridine ring is 34.53 (8)°. The Pd-C bond length between the NHC ligand and the Pd(II) ion is 1.9532 (16) Å. In the crystal, weak non-classical C-H⋯Cl hydrogen bonds link the mol-ecules into a tape structure along [101]. A weak π-π inter-action is also observed [centroid-centroid distance = 3.9117 (11) Å].
标题化合物[PdCl₂(C₁₁H₉N)(C₁₃H₁₄N₂)]代表了一类新型的可聚合钯基单体，它可以生成具有潜在催化活性的聚合物。它是通过相应银配合物的金属转移反应合成的。Pd(II)离子与两个Cl⁻阴离子、来自N-杂环卡宾（NHC）配体的一个C原子和来自4-苯基吡啶配体的一个N原子配位，呈现出略微扭曲的平面正方形几何构型。咪唑环与吡啶环之间的二面角为34.53 (8)°。NHC配体与Pd(II)离子之间的Pd-C键长为1.9532 (16) Å。在晶体中，弱的非经典C-H⋯Cl氢键将分子沿[101]方向连接成带状结构。还观察到一个弱的π-π相互作用[质心-质心距离 = 3.9117 (11) Å]。
