Abstract
The crystal structure of 5-fluorosalicylic acid is known from the literature [Choudhury & Guru Row (2004). Acta Cryst. E60, o1595-o1597] as crystallizing in the monoclinic crystal system with space-group setting P2(1)/n and with one molecule in the asymmetric unit (polymorph I). We describe here a new polymorph which is again monoclinic but with different unit-cell parameters (polymorph II). Polymorph II has two molecules in the asymmetric unit. Its structure was modelled as a twin, with a pseudo-orthorhombic C-centred twin cell.
| Original language | English |
|---|---|
| Pages (from-to) | 1-6 |
| Number of pages | 6 |
| Journal | Acta crystallographica. Section C, Structural chemistry |
| Volume | 74 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2018 |
Keywords
- fluorosalicylic acid
- crystal structure
- polymorphism
- twinning
- thermal expansion
- O—H...F hydrogen bonds
- fluorine interactions
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