Conformational dimorphism of 2,2′-methylenebis(isoindoline-1,3-dione)

Autor: Tze Shyang Chia, Huey Chong Kwong, Ai Jia Sim, Weng Zhun Ng, Qin Ai Wong, C. S. Chidan Kumar, Ching Kheng Quah, Md. Azharul Arafath
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Acta Crystallographica Section E: Crystallographic Communications, Vol 75, Iss 1, Pp 49-52 (2019)
Druh dokumentu: article
ISSN: 2056-9890
20569890
DOI: 10.1107/S2056989018017425
Popis: In this study, a new monoclinic polymorph (space group C2/c) of 2,2′-methylenebis(isoindoline-1,3-dione), C17H10N2O4, is reported and compared to the previously reported triclinic polymorph (space group P\overline{1}). Similarly, both polymorphs consist of a unique molecule in the asymmetric unit (Z′ = 1). The molecular conformations of the two polymorphs are very similar, as shown by the r.m.s. deviation of 0.368 Å (excluding all H atoms). The intermolecular interactions of both polymorphs are described along with the Hirshfeld surface analysis, and the lattice energies are calculated.
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