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Can the thermal expansion be controlled by varying the hydrogen bond dimensionality in polymorphs?

  • Viswanadha G. Saraswatula
  • , Suman Bhattacharya
  • , Binoy K. Saha
  • Pondicherry University

Research output: Contribution to journalArticlepeer-review

Abstract

2-Butynoic acid exists in two enantiotropically related polymorphic forms. The monoclinic form, containing a one dimensional hydrogen bond in the structure, exhibits a smaller volumetric thermal expansion coefficient than the triclinic form which has a zero dimensional hydrogen bond. The phase transformation 1D → 0D has been correlated with the different thermal expansion abilities of the groups present in the molecule and the crystal packing in these two forms.

Original languageEnglish
Pages (from-to)3345-3348
Number of pages4
JournalNew Journal of Chemistry
Volume39
Issue number5
DOIs
Publication statusPublished - 1 May 2015
Externally publishedYes

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