Hydrothermal Syntheses, Crystal Structures and Photoluminescence Property of Complexes [M(C14H10N4)(2)center dot HPO4] center dot 0.25H(2)O (M=Cd, Mn)

作者：Qiu Dong Fang; Guo Ying Chen^*; Feng Yu Quan; Chen Shu Yang; Sai Ming Ze

来源：Chinese Journal of Inorganic Chemistry, 2010, 26(9): 1663-1668.

• 2.2 '-dibenzimidazole
• cadmium(II)complex
• manganese(II) complex
• crystal structure
• photoluminescence

Two new supermolecular complexes, [M(2,2'-dibenzimidazole)(2)center dot HPO4] center dot 0.25H(2)O (complex 1: M=Cd, complex 2: M=Mn) were synthesized by the hydrothermal reaction of o-diaminobenzene, oxalic acid with CdSO4 or MnSO4 in 10% H3PO4 solution, and were characterized by elemental analysis, IR spectral analysis and thermogravimetric analysis. Their crystal structures were determined by the X-ray single crystal diffraction, which show that both of them belong to triclinic system and space group P (1) over bar with similar crystal parameters. Each of them consists of a M(II) ion, two 2,2'-dibenzimidazole units, a hydrogen phosphate ion and 0.25 crystal water molecule in the single cell. The coordinated geometry of the centre metal atom with four nitrogen atoms and two oxygen atoms is the distorted octahedral configuration. Two 2D layer supermolecular complex systems are formed by the hydrogen bonds N-H center dot center dot center dot O and pi-pi stacking interactions between neighboring single cells. Complex 1 shows a strong fluorescent emission (lambda(max)=491.0 nm) at solid state. CCDC: 750512, 1; 756314, 2.

• 出版日期2010-9-10
• 单位南阳师范学院