Ontology highlight
ABSTRACT:
SUBMITTER: Fun HK
PROVIDER: S-EPMC3200663 | biostudies-literature | 2011 Sep
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20110827 Pt 9
In the title heteroaryl chalcone derivative, C(17)H(17)NO(4), the dihedral angle between the pyridine and benzene rings is 10.82 (5)°. The two meth-oxy groups at the meta positions are essentially coplanar with the attached benzene rings [C-O-C-C torsion angles = -0.97 (14) and 179.47 (9)°], whereas the meth-oxy group at the para position is twisted from the attached ring with a C-O-C-C torsion angle of -104.48 (11)°. A C-H⋯O close contact involving two of the meth-oxy groups generates an S(6) r ...[more]