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(m-Phenyl-enedimethyl-ene)diammonium dichloride.

ABSTRACT: The asymmetric unit of the title compound, C(8)H(14)N(2) (2+)·2Cl(-), contains one and a half of the dications and three chloride anions. The half molecule is completed by crystallographic twofold symmetry with two C atoms lying on the rotation axis. The two ammonium groups in each cation adopt a trans conformation with respect ot the benzene ring. The ammonium groups and chloride anions are involved in the formation of a three-dimensional N-H?Cl hydrogen-bonding network, which stabilizes the crystal packing.

SUBMITTER: Cheng H

PROVIDER: S-EPMC2959707 | biostudies-literature | 2008 Oct

REPOSITORIES: biostudies-literature

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(m-Phenyl-enedimethyl-ene)diammonium dichloride.

Cheng Hua H Li Huisheng H

Acta crystallographica. Section E, Structure reports online 20081004 Pt 11

The asymmetric unit of the title compound, C(8)H(14)N(2) (2+)·2Cl(-), contains one and a half of the dications and three chloride anions. The half molecule is completed by crystallographic twofold symmetry with two C atoms lying on the rotation axis. The two ammonium groups in each cation adopt a trans conformation with respect ot the benzene ring. The ammonium groups and chloride anions are involved in the formation of a three-dimensional N-H⋯Cl hydrogen-bonding network, which stabilizes the cr ...[more]

PMID: 21580926

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(m-Phenyl-enedimethyl-ene)diammonium p-nitro-phenyl-phosphate perchlorate.

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Project description:In the title salt, C(20)H(22)N(2) (2+)·2C(12)H(4)N(4) (-), the cations and anions stack along the b axis into segregated columns. In the cation, which has a crystallographically imposed centre of symmetry, the dihedral angle between the benzene and pyridine rings is 89.14?(4)°. Centrosymmetrically related anions form dimers by ?-? stacking inter-actions, with centroid-centroid separations of 3.874?(4)?Å. The crystal packing is stabilized by inter-columnar C-H?N hydrogen bonds.

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