2 POLYMORPHIC FORMS OF 3-HYDROXY-2-METHYL-4H-PYRAN-4-ONE (MALTOL)

Authors
BURGESS J FAWCETT J RUSSELL DR HIDER RC HOSSAIN MB STONER CR VANDERHELM D
Citation
J. Burgess et al., 2 POLYMORPHIC FORMS OF 3-HYDROXY-2-METHYL-4H-PYRAN-4-ONE (MALTOL), Acta crystallographica. Section C, Crystal structure communications, 52, 1996, pp. 2917-2920
Citations number
9
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
52
Year of publication
1996
Part
11
Pages
2917 - 2920
Database
ISI
SICI code
0108-2701(1996)52:<2917:2PFO3(>2.0.ZU;2-K
Abstract
The crystal structures of two polymorphic forms of maltol, C6H6O3, hav e been determined. The polymorphs exhibit different crystal-packing ar rangements through intermolecular hydrogen bonding involving the hydro xyl H atoms. Form (1) has a near-planar chain of molecules linked by h ydrogen bonds while form (2) has mutually hydrogen-bonded dimers. In b oth polymorphic forms there are also weaker C-H ... O bonds which give greater stability to the chains of form (1) and link the dimers in fo rm (2).