A one-dimensional Hg II coordination polymer based on bis(pyridin-3-ylmethyl)sulfane

초록

The reaction of mercury(II) chloride with bis(pyridin-3-ylmethyl)sulfane (L, C 12 H 12 N 2 S) in methanol afforded the title crystalline coordination polymer catena-poly[[dichloridomercury(II)]-μ-bis(pyridin-3-ylmethyl)sulfane-κ 2 N:N′], [HgCl 2 L] n. The asymmetric unit consists of one Hg II cation, one L ligand and two chloride anions. Each Hg II ion is coordinated by two pyridine N atoms from separate L ligands and two chloride anions. The metal adopts a highly distorted tetrahedral geometry, with bond angles about the central atom in the range 97.69(12)-153.86(7). Each L ligand bridges two Hg II ions, forming an infinite-(Hg-L) n-zigzag chain along the b axis, with an HgHg separation of 10.3997(8)Å. In the crystal, adjacent chains are connected by intermolecular C-HCl hydrogen bonds, together with Hg-Cl interactions [chloride-to-centroid distance = 3.902(3)Å], that form between a chloride anion and the one of the pyridine rings of L, generating a two-dimensional layer extending parallel to (101). These layers are further linked by intermolecular C-H hydrogen bonds, forming a three-dimensional supramolecular network. © Moon et al. 2017.

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