Abstract
The title compound, C
12
H
12
N
2
O
2
, crystallized in the monolinic space group
P
2
1
/
n
, with two independent molecules (
A
and
B
) in the asymmetric unit. This is in contrast to the first monoclinic polymorph reported [Cingolani
et al.
(2002
▶
).
Inorg. Chem.
41
, 1151–116], which crystallized in the space group
C
2/
c
with one independent molecule per asymmetric unit. The dihedral angles between the two rings differ slightly; in molecule
A
it is 4.90 (11)° and in molecule
B
it is 16.05 (13)°. In both molecules, there is an intramolecular O—H⋯O hydrogen bond involving the hydroxyl substituent and the carbonyl O atom of the adjacent acetyl group. In the crystal structure, molecules
A
and
B
are linked
via
a C—H⋯N interaction. There are also some weak C—H⋯π interactions involving the phenyl ring of molecule
A
and H atoms of the acetyl groups of both molecules.