Synthesis,Crystal Structure and Luminescent Properties of a Novel Zinc(II) Complex of N-Acetyl-L-glutamic Acid and Imidazole Ligands

【Abstract】 A novel complex [Zn(Im)2(A-glu)]’0.5H2O (Im = imidazole, A-glu = N-acetyl- L-glutamic acid) has been synthesized from the reaction of A-glu with Zn(CH3COO)2’2H2O in the presence of Im at 65 ℃, and structurally characterized by single-crystal X-ray diffraction. The complex crystallizes in tetragonal, space group P43212 with a = b = 8.9078(6), c = 43.458(6) ’, C26H36N10O11Zn2, Mr = 795.39, V = 3448.3(6) ’3, Dc = 1.532 g/cm3, Z = 4, μ(MoKα) = 1.461 mm’1, F(000) = 1640, the final R = 0.0453 and wR = 0.0992. X-ray analysis reveals that the crystal structure is constructed by mixed ligands. A-glu adopts the bis-monodentate coordination mode linking two adjacent metal ions to form a one-dimensional chain. Zinc(II) ions are four-coordinated with a distorted tetrahedral geometry. Luminescent properties of the complex have been inves- tigated.更多还原