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Ortho-rhom-bic polymorph of 4-[(1H-benzimidazol-1-yl)meth-yl]benzoic acid.

ABSTRACT: We reported recently the first polymorph of the title compound [Kuai & Cheng (2011a ?). Acta Cryst., E67, o2787]. A second polymorph of the title compound, C(15)H(12)N(2)O(2), was unexpectedly obtained by the hydro-thermal reaction of the title compound with manganese chloride in the presence of potassium hydroxide at 413?K. The benzimidazole ring system is almost planar, with a maximum deviation from the mean plane of 0.015?(2)?Å. The benzimidazole and benzene rings are inclined at a dihedral angle of 79.00?(1)°. In the crystal, adjacent mol-ecules are connected through O-H?N hydrogen bonds into a one-dimensional chain along the [001] direction.

SUBMITTER: Kuai HW

PROVIDER: S-EPMC3247413 | biostudies-literature | 2011 Nov

REPOSITORIES: biostudies-literature

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Ortho-rhom-bic polymorph of 4-[(1H-benzimidazol-1-yl)meth-yl]benzoic acid.

Kuai Hai-Wei HW Cheng Xiao-Chun XC

Acta crystallographica. Section E, Structure reports online 20111022 Pt 11

We reported recently the first polymorph of the title compound [Kuai & Cheng (2011a ▶). Acta Cryst., E67, o2787]. A second polymorph of the title compound, C(15)H(12)N(2)O(2), was unexpectedly obtained by the hydro-thermal reaction of the title compound with manganese chloride in the presence of potassium hydroxide at 413 K. The benzimidazole ring system is almost planar, with a maximum deviation from the mean plane of 0.015 (2) Å. The benzimidazole and benzene rings are inclined at a dihedral a ...[more]

PMID: 22220031

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