title: 9-(4-Methoxy-phen-yl)-3,3,6,6-tetra-methyl-3,4,6,7-tetra-hydro-2H-xanthene-1,8(5H,9H)-dione.
abstract: In the mol-ecule of the title compound, C(24)H(28)O(4), the three six-membered rings of the xanthene system are not planar, having envelope, boat and envelope conformations. In the crystal structure, C-H⋯O hydrogen bonds link the mol-ecules, generating centrosymmetric R(2) (2)(12), R(4) (4)(28) and R(2) (2)(16) ring motifs and forming a three-dimensional network.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Odabaşoğlu
authors.forename: Muharrem
authors.initials: M
authors.lastname: Kaya
authors.forename: Yılmaz
authors.initials: Y
authors.lastname: Yıldırır
authors.forename: Orhan
authors.initials: O
authors.lastname: Büyükgüngör