2-Acetylbenzoic acid: phthalide form.
In the structure of the phthalide form of 2-acetylbenzoic acid, C9H8O3, there is a single type of hydrogen bond. Each molecule donates one and accepts one hydrogen bond. The hydrogen-bonded molecules form sets of puckered ribbons running along the c direction which are not crosslinked to each other. The dihedral angle between the planes of adjacent molecules along a hydrogen-bonded ribbon is 77.4(1) degrees.
Dobson
A J
AJ
Department of Chemistry, Ohio State University, Columbus 43210, USA.
Gerkin
R E
RE
D001572:Benzofurans / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D015394:Molecular Structure
C104226:3-hydroxy-3-methyl-1(3H)-isobenzofuranone; D001572:Benzofurans; C082022:phthalide