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A new supramolecular compound,{[2-(2-pyridyl)benzimidazoleH2]2+·[SbCl5]2-}2,was synthesized by the hydrothermal reaction of o-diaminobenzene,2-pyridinecarboxylic acid and SbCl3 in 1:1 HCl solution,and characterized by chemical analysis,elemental analysis,IR spectra,thermogravimetric analysis and fluorescence spectra. The crystal structure was deter-mined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system,space group P21/c,with a=16.0397(13),b=14.3189(12),c=15.6370(13),β=105.8980(10)°,V=3454.0(5)3,Z=4,C24H22Cl10N6Sb2,Mr=992.48,Dc=1.909 g/cm3,μ=2.366 mm-1,S=1.010,F(000)=1920,R=0.0254 and wR=0.0555. The coordination anion,[SbCl5]2-which is a distorted tetragonal pyramid,is composed by coordinating action with Sb3+ ion and five adjacent chloride ions. Every four coordination anions of [SbCl5]2-form a biquaternion ring structure through the secondary bonding of Sb···Cl. Moreover,the compound adopts a three-dimensional network supramolecular structure because of the hydrogen bonds and π-π stacking between the rings and the 2-(2-pyridyl)benzimidazole divalent cations. The title compound also shows good fluorescent behaviors.
A new supramolecular compound, {[2- (2-pyridyl) benzimidazoleH2] 2 + [SbCl5] 2-} 2 was synthesized by the hydrothermal reaction of o- diaminobenzene, 2-pyridinecarboxylic acid and SbCl3 in 1: 1 HCl solution , and characterized by chemical analysis, elemental analysis, IR spectra, thermogravimetric analysis and fluorescence spectra. The crystal structure was deter- mined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P21 / c, with a = 16.0397 (13) b = 14.3189 (12) c = 15.6370 (13) β β = 105.8980 (10) ° V = 3454.0 (5) 3 Z = 4 C24H22Cl10N6Sb2 Mr = 992.48 Dc = 1.909 g / cm3, μ = 2.366 mm-1, S = 1.010, F (000) = 1920, R = 0.0254 and wR = 0.0555. The coordination anion, [SbCl5] 2- which is a distorted tetragonal pyramid, is composed by coordinating action with Sb3 + ion and five adjacent chloride ions. Every four coordination anions of [SbCl5] 2-form a biquaternion ring structure through the secondary bonding of Sb ··· Cl. Furthermore, the compound adopts a three-dimensional network supramolecular struct ure because of the hydrogen bonds and π-π stacking between the rings and the 2- (2-pyridyl) benzimidazole divalent cations. The title compound also shows good fluorescent behaviors.