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 language | English |
|---|---|
| Pages (from-to) | 3345-3348 |
| Number of pages | 4 |
| Journal | New Journal of Chemistry |
| Volume | 39 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 May 2015 |
| Externally published | Yes |
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