Crystal structure of a binuclear nickel(II) complex constructed of 1H-imidazo[4,5-f][1,10]phenanthroline and doubly deprotonated benzene-1,3,5-tricarboxylic acid

Acta Crystallographica Section E: Crystallographic Communications

Ying Lv¹  Xiang-Rong Hao¹ 

[1] College of Chemistry, Tonghua Normal University, Tonghua, Jilin 134002, People's Republic of China;

关键词: crystal structure;    nickel(II) complex;    binuclear cluster;    1H-imidazo[4,5-f][1,10]phenanthroline;    benzene-1,3,5-tricarboxylic acid;    hydrogen bonding;    π–π stacking;   

DOI  :  10.1107/S205698901500420X

来源: DOAJ

【 摘 要 】

The title complex, [Ni2(C9H4O6)2(C13H8N4)2(H2O)4]·2H2O, bis(μ-5-carboxybenzene-1,3-dicarboxylato-κ2O1:O1′)bis[diaqua(1H-imidazo[4,5-f][1,10]phenanthroline-κ2N7,N8)nickel(II)] dihydrate, was obtained under solvothermal conditions by the reaction of benzene-1,3,5-tricarboxylic acid (H3BTC) with Ni(NO3)2 in the presence of 1H-imidazo[4,5-f][1,10]phenanthroline (IP). The crystal has triclinic (P-1) symmetry with a centrosymmetric binuclear nickel(II) cluster. The NiII atom is coordinated by two N atoms from a chelating 1H-imidazo[4,5-f][1,10]phenanthroline ligand, two carboxylate O atoms from two 5-carboxybenzene-1,3-dicarboxylate ligands and two water molecules in a slightly distorted octahedral geometry. Two carboxylate groups bridge two NiII cations, forming the binuclear complex. Extensive N—H...O, O—H...O and O—H...N hydrogen bonding is present in the crystal structure, forming a three-dimensional supermolecular framework. Weak π–π stacking is observed between parallel HBTC2− and IP ring systems, the face-to-face separation being 3.695 (2) Å.

【 授权许可】

Unknown