Research Article: 10-(4-Methyl­benzyl­idene)anthracen-9(10H)-one

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Abdulrahman I. Almansour, Natarajan Arumugam, Usama Karama, Ibrahim Abdul Razak, Suhana Arshad.


In the title compound, C22H16O, the six-membered ring within the anthrone moiety adopts a shallow boat conformation, with puckering parameters Q = 0.2860 (17) Å, Θ = 99.1 (3)° and Φ = 114.8 (3)°. The dihedral angle between the outer benzene rings is 26.53 (8)°. The mean plane through the anthrone ring system makes a dihedral angle of 38.73 (6)° with the pendant benzene ring. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds into zigzag chains propagating along the c-axis direction and weak C—H⋯π inter­actions further consolidate the structure.

Partial Text

For a related structure and background to anthrone derivatives, see: Arumugam et al. (2011 ▶). For related structures, see: Wen & Li (2008 ▶); Zhou et al. (2004 ▶). For the synthesis, see: Prinz et al. (2003 ▶). For ring conformations, see: Cremer & Pople (1975 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶).