Hydrothermal Synthesis, Crystal Structure and Fluorescence Spectrum Studies of a Novel Supramolecular Compound {[2-(2-Pyridyl)benzimidazoleH(2)](2)center dot[BiCl6]center dot Cl}

作者：Qiu Dong Fang; Li Yu Ling; Wang Hong Wei; Guo Ying Chen^*

来源：Chinese Journal of Structural Chemistry, 2010, 29(5): 811-815.

• 2-(2-pyridyl)benzimidazole
• supramolecular compound
• hydrothermal synthesis
• crystal structure
• photoluminescence spectroscopy

A novel supramolecular compound, {[2-(2-pyridyl)benzirnidazoleH(2)](2)center dot[BiCl6]center dot Cl}, was synthesized by the hydrothermal reaction of o-phenylenediamine and a-pyridinecarboxylic acid with BiCl3 in 6.0 mol.L-1 HCl solution, and characterized by elemental analysis, IR, X-ray single-crystal diffraction and photoluminescence spectroscopy. The crystal (C24H22N6C17Bi, M-r = 851.61) belongs to the triclinic system, space group P (1) over bar with a = 7.2887(18), b = 9.548(2), c = 12.469(3) angstrom, alpha = 85.306(4), beta = 82.814(4), gamma = 71.349(4)degrees, Z = 1, V = 814.9(3) angstrom(3), D-c = 1.735 g/cm(3), mu(MoK alpha) = 6.007 mm(-1), F(000) = 410, R = 0.0307 and wR = 0.0787. The bismuth ion and six chlorine ions construct a distorted octahedral configuration. The three-dimensional supramolecular network is built from electrostatic attractions, hydrogen bonds and pi-pi interaction between the BiCl6 anion, Cl anion and [2-(2-pyridyl)benzimidazoleH(2)] cation. The photoluminescence spectroscopy study shows that the title compound has a blue fluorescent emission at 450 nm in the solid state.

• 出版日期2010
• 单位南阳师范学院