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

Chia TS 1 , Kwong HC 2 , Sim AJ 1 , Ng WZ 1 , Wong QA 1 , Chidan Kumar CS 3 Show all authors , Quah CK 1 , Arafath MA 4

Affiliations 

  • 1 X-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
  • 2 School of Chemical Sciences, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
  • 3 Department of Engineering Chemistry, Vidya Vikas Institute of Engineering and Technology, Visvesvaraya Technological University, Alanahalli, Mysuru 570 028, India
  • 4 Department of Chemistry, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
Acta Crystallogr E Crystallogr Commun, 2019 Jan 01;75(Pt 1):49-52.
PMID: 30713732 DOI: 10.1107/S2056989018017425

Abstract

In this study, a new monoclinic polymorph (space group C2/c) of 2,2'-methyl-enebis(isoindoline-1,3-dione), C17H10N2O4, is reported and compared to the previously reported triclinic polymorph (space group P ). Similarly, both polymorphs consist of a unique mol-ecule in the asymmetric unit (Z' = 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.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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