Synthesis, Spectral Characterization, and Crystal Structure of Mononuclear Mercury(II) Complex [Hg((3,4-MeO-Bza)2En)I2]

摘要

Mercury(II) complex, [Hg((3,4-MeO-Bza)2En)I2] (I), where (3,4-MeO-Bza)2En = N,N'-bis(3,4-dimethoxybenzaldehyde)ethylenediimine, has been synthesized from the reaction of Hgl2 with (3,4-MeO-Bza)2En in methanol as solvent at 50°C. It was characterized by elemental analysis (CHN), ~1H-NMR spectroscopy and confirmed by single-crystal X-ray diffraction analysis. The complex I crystallizes in the mono-clinic system, with space group P2_1/c, having one symmetry-independent Hg~(2+) ion coordinated in a distorted tetrahedral geometry by two N atoms of the Schiff base ligand and by two I atoms. The Schiff base ligand (3,4-MeO-Bza)2En acts as a chelating ligand and coordinates via two N atoms to the mercury center. It adopts an (E, E) conformation.