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catena-Poly[[diiodidomercury(II)]-μ-N,N′-p-phenyl­enebis­(pyridine-3-carboxamide)-κ2N:N′]

✍ Scribed by Zhu, Ying-Gui ;Gao, Feng

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
193 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

Crystals of the title compound, [HgI~2~(C~18~H~14~N~4~O~2~)]~n~, were obtained by the reaction of HgI~2~ and p-phenylene-bis(pyridine-3-carboxamide) in DMF. The asymmetric unit is composed of only half of the formula unit; the mercury atom lies on a crystallographic twofold rotation axis, and there is an inversion centre at the centre of the benzene ring. Each Hg^II^ atom is coordinated by two I atoms and two N atoms from two p-phenylene-bis(pyridine-3-carboxamide) (bpfb) ligands, in a distorted tetrahetral geometry. Bpfb acts as a bifunctional bridging ligand, linking Hg^II^ atoms into a one-dimensional chain. Hydrogen-bonding interactions between the O atom and the H atoms of bpfb ligands result in a two-dimensional supramolecular network.

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