Conformational dimorphism of 2,2'-methyl-enebis(isoindoline-1,3-dione)

In this study, a new monoclinic polymorph (space group 2/ ) of 2,2'-methyl-enebis(isoindoline-1,3-dione), C H N O , is reported and compared to the previously reported triclinic polymorph (space group ). Similarly, both polymorphs consist of a unique mol-ecule in the asymmetric unit ( ' =...

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Veröffentlicht in:Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2019-01, Vol.75 (Pt 1), p.49-52
Hauptverfasser: Chia, Tze Shyang, Kwong, Huey Chong, Sim, Ai Jia, Ng, Weng Zhun, Wong, Qin Ai, Chidan Kumar, C S, Quah, Ching Kheng, Arafath, Md Azharul
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Sprache:eng
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Zusammenfassung:In this study, a new monoclinic polymorph (space group 2/ ) of 2,2'-methyl-enebis(isoindoline-1,3-dione), C H N O , is reported and compared to the previously reported triclinic polymorph (space group ). Similarly, both polymorphs consist of a unique mol-ecule in the asymmetric unit ( ' = 1). The mol-ecular 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 inter-molecular inter-actions of both polymorphs are described along with the Hirshfeld surface analysis, and the lattice energies are calculated.
ISSN:2056-9890
2056-9890
DOI:10.1107/S2056989018017425