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3-Ammonio-pyridinium tetra-bromido-mercurate(II) monohydrate.

ABSTRACT: The asymmetric unit of the title compound, (C(5)H(8)N(2))[HgBr(4)]·H(2)O, consists of one cation, one anion and one water mol-ecule. The anion exhibits a distorted tetra-hedral arrangement about the Hg atom. The crystal structure contains alternating sheets of cations (in the ac plane) and stacks of anions. Several strong hydrogen-bonding inter-actions (pyN-H?Br and C-H?Br; py is pyridine), along with O-H?Br inter-actions, connect the sheets of cations to the stacks of anions. Cation-cation ?-? stacking is also present (C?C distances in the range 3.424-3.865?Å). The shortest Br?Br distance is 3.9527?(9)?Å.

SUBMITTER: Ali BF

PROVIDER: S-EPMC2961581 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature

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3-Ammonio-pyridinium tetra-bromido-mercurate(II) monohydrate.

Ali Basem Fares BF Al-Far Rawhi H RH Haddad Salim F SF

Acta crystallographica. Section E, Structure reports online 20080503 Pt 6

The asymmetric unit of the title compound, (C(5)H(8)N(2))[HgBr(4)]·H(2)O, consists of one cation, one anion and one water mol-ecule. The anion exhibits a distorted tetra-hedral arrangement about the Hg atom. The crystal structure contains alternating sheets of cations (in the ac plane) and stacks of anions. Several strong hydrogen-bonding inter-actions (pyN-H⋯Br and C-H⋯Br; py is pyridine), along with O-H⋯Br inter-actions, connect the sheets of cations to the stacks of anions. Cation-cation π-π ...[more]

PMID: 21202445

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