双{μ-2,5-双-[4-(2-吡啶甲基氨基)苯基]-1,3,4-恶二唑}双-[二氯汞(II)]
Bis{μ-2,5-bis-[4-(2-pyridylmethyl-amino)phen-yl]-1,3,4-oxadiazole}bis-[dichlorido-mercury(II)].
作者信息
Liu Li-Li, Hou Gui-Ge, Ma Jian-Ping, Huang Ru-Qi, Dong Yu-Bin
机构信息
College of Chemistry, Chemical, Engineering and Materials Science, Shandong Normal University, Jinan 250014, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2008 Mar 14;64(Pt 4):m555. doi: 10.1107/S1600536808006788.
In the title centrosymmetric compound, [Hg(2)Cl(4)(C(26)H(22)N(6)O)(2)], each Hg(II) center adopts a distorted HgN(3)Cl(2) trigonal bipyramidal coordination geometry, formed by two pyridine N atoms, one imine N atom and two chloride anions. Within the organic ligand, the oxadiazole ring is nearly coplanar with the two benzene rings [dihedral angles = 5.9 (4) and 6.5 (4)°] and nearly perpendicular to the two pyridine rings with the same dihedral angle of 77.4 (4)°. The two organic ligands bridge two Hg(II) ions to form the macrocyclic complex. Inter-molecular N-H⋯Cl and N-H⋯N hydrogen bonding helps to stabilize the crystal structure.
在标题中的中心对称化合物[Hg₂Cl₄(C₂₆H₂₂N₆O)₂]中，每个Hg(II)中心采用扭曲的HgN₃Cl₂三角双锥配位几何构型，由两个吡啶N原子、一个亚胺N原子和两个氯离子形成。在有机配体中，恶二唑环与两个苯环几乎共面[二面角 = 5.9 (4) 和 6.5 (4)°]，并与两个吡啶环几乎垂直，二面角相同，为77.4 (4)°。两个有机配体桥连两个Hg(II)离子形成大环配合物。分子间的N-H⋯Cl和N-H⋯N氢键有助于稳定晶体结构。
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