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Updated: May 26, 2026

A Study of the Complexation of Mercury(II) with Dicysteinyl Tetrapeptides by Electrospray Ionization Mass Spectrometry
Published on: January 8, 2016
Dibromidobis{1-[4-(pyridin-4-yl)phen-yl]ethanone-κN}mercury(II)
Wen-Shen Zhang1, Zhi-Juan Liu, Feng Xu
1Shandong Nonmetallic Material Institute, Jinan 250031, People's Republic of China.
Abstract:
In the title compound, [HgBr(2)(C(13)H(11)NO)(2)], the Hg(II) atom adopts a four-coordinated HgN(2)Br(2) geometry, formed by two pyridine N atoms from two ligands and two bromide anions. The complex is located on a twofold axis. The coordination geometry is close to forming a see-saw (SS-4) polyhedron, the symmetry-related organic ligands being almost perpendicular; the dihedral angles between the two pyridine rings and between the two benzene rings are 85.5 (4) and 87.7 (4)°, respectively. Within the organic ligand, the pyridine ring is nearly coplanar with the benzene ring [dihedral angle = 13.1 (8)°]. In the crystal, the mol-ecular complexes are connected through weak inter-molecular C-H⋯Br contacts.
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