A new polymorph of N-phenyl­phthalimide

During an attempt to prepare a cocrystal of N-phenyl­phthalimide, C(14)H(9)NO(2), with N-(2,3,4,5,6-penta­fluoro­phen­yl)phthalimide, a new ortho­rhom­bic polymorph of the first component was obtained. This new form has Z′ = 0.5 and the mol­ecule is located around a twofold axis, whereas in the prev...

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Detalles Bibliográficos
Autores principales: Izotova, L. Yu., Ashurov, J. M., Ibragimov, B. T., Weber, E.
Formato: Texto
Lenguaje:English
Publicado: International Union of Crystallography 2009
Materias:
Organic Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2968531/
https://www.ncbi.nlm.nih.gov/pubmed/21582305
http://dx.doi.org/10.1107/S1600536809006746
Descripción
Sumario:During an attempt to prepare a cocrystal of N-phenyl­phthalimide, C(14)H(9)NO(2), with N-(2,3,4,5,6-penta­fluoro­phen­yl)phthalimide, a new ortho­rhom­bic polymorph of the first component was obtained. This new form has Z′ = 0.5 and the mol­ecule is located around a twofold axis, whereas in the previously reported polymorph (space group Pbca), the mol­ecule has no crystallographically imposed symmetry. Pairs of C—H⋯O inter­actions between inversion-related phthalimide units arrange mol­ecules into tapes that are further assembled into (010) layers via stacking inter­actions between phthalimide fragments [inter­planar distance = 3.37 (5) Å].

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