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A new polymorph of N-phenyl-phthalimide.

ABSTRACT: During an attempt to prepare a cocrystal of N-phenyl-phthalimide, C(14)H(9)NO(2), with N-(2,3,4,5,6-penta-fluoro-phen-yl)phthalimide, a new ortho-rhom-bic polymorph of the first component was obtained. This new form has Z' = 0.5 and the mol-ecule is located around a twofold axis, whereas in the previously reported polymorph (space group Pbca), the mol-ecule has no crystallographically imposed symmetry. Pairs of C-H?O inter-actions between inversion-related phthalimide units arrange mol-ecules into tapes that are further assembled into (010) layers via stacking inter-actions between phthalimide fragments [inter-planar distance = 3.37?(5)?Å].

SUBMITTER: Izotova LY

PROVIDER: S-EPMC2968531 | biostudies-literature | 2009 Feb

REPOSITORIES: biostudies-literature

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A new polymorph of N-phenyl-phthalimide.

Izotova L Yu LY Ashurov J M JM Ibragimov B T BT Weber E E

Acta crystallographica. Section E, Structure reports online 20090228 Pt 3

During an attempt to prepare a cocrystal of N-phenyl-phthalimide, C(14)H(9)NO(2), with N-(2,3,4,5,6-penta-fluoro-phen-yl)phthalimide, a new ortho-rhom-bic polymorph of the first component was obtained. This new form has Z' = 0.5 and the mol-ecule is located around a twofold axis, whereas in the previously reported polymorph (space group Pbca), the mol-ecule has no crystallographically imposed symmetry. Pairs of C-H⋯O inter-actions between inversion-related phthalimide units arrange mol-ecules in ...[more]

PMID: 21582305

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