Synthesis, Crystal Structures and Antifungal Activities of Two Isostructural Dinuclear Zinc(II) Complexes Derived from 4-Chloro-2-[(2-methylaminoethylimino)methyl]phenol

摘要

Two new isostructural zinc(II) complexes with the formula Zn2L2X2 (L = 4-chloro-2-[(2-methylaminoethylimino)methyl]phenolate; X = Br for (1) and CI for (2)), have been synthesized from the reaction of the Schiff base ligand HL with zinc(II) halides in methanol solutions. The complexes have been structurally characterized by IR spectra and single-crystal X-ray diffraction. In each of the complexes, one Zn atom is in a distorted octahedral coordination, while the other Zn atom is in a distorted tetrahedral coordination. The distances between the two zinc centers are 3.126(1) 8 for (1) and 3.128(1) 8 for (2). The Schiff base ligand HL and the two complexes showed moderate antifungal activity against the fungi Aspergillus flavus, Fusarium and Candida albicans.