Crystal structure of a second monoclinic polymorph of 3-meth-oxy-benzoic acid with Z' = 1.
Acta Crystallogr E Crystallogr Commun
; 75(Pt 1): 8-11, 2019 Jan 01.
Article
em En
| MEDLINE
| ID: mdl-30713724
ABSTRACT
A new polymorphic form of the title compound, C8H8O3, is described in the centrosymmetric monoclinic space group P21/c with Z' = 1 as compared to the first polymorph, which crystallizes with two conformers (Z' = 2) in the asymmetric unit in the same space group. In the crystal of the second polymorph, inversion dimers linked by O-Hâ¯O hydrogen bonds occur and these are linked into zigzag chains, propagating along the b-axis direction by C-Hâ¯O links. The crystal structure also features a weak π-π inter-action, with a centroid-to-centroid distance of 3.8018â
(6)â
Å. The second polymorph of the title compound is less stable than the reported first polymorph, as indicated by its smaller calculated lattice energy.
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1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Acta Crystallogr E Crystallogr Commun
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Malásia