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Hydrogen-bonded network in the salt 4-methyl-1H-imidazol-3-ium picrate.

ABSTRACT: In the title molecular salt, C4H7N2 (+)·C6H2N3O7 (-), the phenolic proton of the starting picric acid has been transferred to the imidazole N atom. The nitro groups are twisted away from the benzene ring plane, making dihedral angles of 12.8?(2), 9.2?(4) and 29.3?(2)°. In the crystal, the component ions are linked into chains along [010] via N-H?O and bifurcated N-H?(O,O) hydrogen bonds. These chains are further linked by weak C-H?O hydrogen bonds into a three-dimensional network. The complex three-dimensional network can be topologically simplified into a 4-connected uninodal net with the point symbol {4.8(5)}.

SUBMITTER: Song XG

PROVIDER: S-EPMC4908564 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature

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Hydrogen-bonded network in the salt 4-methyl-1H-imidazol-3-ium picrate.

Song Xue-Gang XG Su Ping P Xu Xing-Man XM

Acta crystallographica. Section E, Crystallographic communications 20160504 Pt 6

In the title molecular salt, C4H7N2 (+)·C6H2N3O7 (-), the phenolic proton of the starting picric acid has been transferred to the imidazole N atom. The nitro groups are twisted away from the benzene ring plane, making dihedral angles of 12.8 (2), 9.2 (4) and 29.3 (2)°. In the crystal, the component ions are linked into chains along [010] via N-H⋯O and bifurcated N-H⋯(O,O) hydrogen bonds. These chains are further linked by weak C-H⋯O hydrogen bonds into a three-dimensional network. The complex th ...[more]

PMID: 27308039

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