title: 9,9-Dimethyl-12-phenyl-8,9-dihydro-12H-benzo[a]xanthen-11(10H)-one.
abstract: The title compound, C(25)H(22)O(2), was synthesized via the three-component coupling of benzaldehyde, 2-naphthol and 5,5-dimethyl-cyclo-hexane-1,3-dione. In the crystal structure, centrosymmetrically related mol-ecules are linked into dimers by pairs of inter-molecular C-H⋯O hydrogen bonds. The dimers are further connected into a three-dimensional network by π-π aromatic stacking inter-actions involving the naphthalene ring system, with centroid-centroid separations of 3.695 (7) Å.
authors.affiliation: School of Materials and Chemical Engineering, and Key Laboratory of Hollow Fiber Membrane Materials Membrane Process, Tianjin Polytechnic University, Tianjin 300160, People's Republic of China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Hong-Jun
authors.initials: HJ
authors.lastname: Zang
authors.forename: Bo-Wen
authors.initials: BW
authors.lastname: Cheng