Key indicators: single-crystal X-ray study; T = 150 K; mean (C-C) = 0.005 Å; R factor = 0.068; wR factor = 0.183; data-to-parameter ratio = 15.1.In the title compound, C 20 H 18 O 3 , the phenyl ring makes a dihedral angle of 50.41 (10) with the benzene ring of the chromanone unit. The molecular structure is stabilized by weak intramolecular C-HÁ Á ÁO interactions and the crystal packing is stabilized by weak intermolecular C-HÁ Á ÁO interactions.
ExperimentalCrystal data C 20 H 18 O 3 M r = 306.34 Monoclinic, P2 1 =c a = 10.0763 (8) Å b = 6.9018 (7) Å c = 22.1841 (18) Å = 98.690 (7) V = 1525.1 (2) Å 3 Z = 4 Mo K radiation = 0.09 mm À1 T = 150 (2) K 0.18 Â 0.11 Â 0.06 mm Data collection Stoe IPDS 2 diffractometer Absorption correction: integration (X-RED32; Stoe & Cie, 2002) T min = 0.984, T max = 0.995 11793 measured reflections 3177 independent reflections 1494 reflections with I > 2(I) R int = 0.133 Refinement R[F 2 > 2(F 2 )] = 0.068 wR(F 2 ) = 0.183 S = 0.92 3177 reflections 210 parameters H-atom parameters constrained Á max = 0.21 e Å À3
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.