title: rac-7-Methyl-3-[(7-methyl-4-oxo-chro-man-3-yl)meth-yl]-4H-chromen-4-one.
abstract: In the racemic title compound, C21H18O4, the chromone ring is essentially planar [maximum deviation from the least-squares plane = 0.026 (3) Å], with a dihedral angle of 78.18 (12)° between the benzene rings of the chromanone and chromenone moieties. In the crystal, there are weak π-π stacking inter-actions [minimum ring centroid separation = 3.9286 (17) Å].
authors.affiliation: Department of Chemistry, Annamalai University, Annamalai Nagar, Chidambaram, India.
authors.forename: M
authors.initials: M
authors.lastname: Somasundaram
authors.forename: A
authors.initials: A
authors.lastname: Rajendiran
authors.forename: K K
authors.initials: KK
authors.lastname: Balasubramanian
authors.forename: K
authors.initials: K
authors.lastname: Krishnasamy
authors.forename: S
authors.initials: S
authors.lastname: Kabilan