Structure and germicidal property of a novel guanidine organomercury complex

Abstract A novel guanidine organomercury complex 1, [HgCl(DNP)]·CH5N3·CH3CN 1 (DNP = 2,4- dinitrophenol), has been synthesized. Each mercury(II) atom is tricoordinated to one chlorine atom, one carbon atom of the benzene ring, and one oxygen atom from 2, 4-dinitrophenol. The coordination arrangement around the mercury atom is Y-shaped. This is the first structural report on an organomercury derivative of 2, 4-dinitrophenol and guanidine. The distance of Hg-Cl between the two Hg ions groups is 3.272 Å, which indicates the presence of weak Hg···Cl interactions. Secondary bonds make complex 1 form 3D interspersed network structure, which is 2D [HgCl(DNP)CH5N3]n plane and 1D solvent [(CH3CN)2]∞ broadband. The antibacterial activity of 1 were studied. It shows complex 1 has very good bactericidal activity, and is also a potential antimicrobial agents.