Synthesis and Optical Property of a New Zinc Complex Based on the Derivative of 2-(2’-Hydroxyphenyl)-1H-benzimidazole and Phenanthroline

A novel zinc complex(ZnE) has been designed and synthesized based on the derivative of 2-(2’-hydroxyphenyl)-1-H-benzimidazole(HBI) and the neutral nitrogen-containing ligand(phen). The crystal of the title complex crystallizes in the monoclinic system, space group P2_(1)/n with a = 10.2631(2), b = 34.2166(6), c = 11.4103(3) A, β = 96.771(2)°, M_(r )= 844.24, V = 3978.99(14) A^(3), Z = 4, the final R = 0.0400 and wR = 0.1001 for 8107 observed reflections(I > 2σ(I)). In the title complex, the free protonated phenoxide moiety(4-OH) is successfully retained to realize pseudo-intramolecular hydrogen bonds with the coordinated O atom from the other ligand.