A new polymorph of<i>N</i>-phenylphthalimide
L. Yu. IzotovaInstitute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, H. Abdullaev Str. 83, Tashkent 100125, UzbekistanJamshid AshurovInstitute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, H. Abdullaev Str. 83, Tashkent 100125, UzbekistanБ. Т. ИбрагимовInstitute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, H. Abdullaev Str. 83, Tashkent 100125, UzbekistanEdwin WeberInstitut für Organische Chemie, TU, Bergakademie Freiberg, Leipziger Strasse 29, D09596 Freiberg/Sachsen, Germany
ABI
Аннотация
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].
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