2-Dipentylamino-4-(4-methoxybenzylidene)-1-phenyl-1H-imidazol-5(4H)-one

Abstract

Key indicators: single-crystal X-ray study; T = 292 K; mean (C-C) = 0.005 Å; disorder in main residue; R factor = 0.063; wR factor = 0.183; data-to-parameter ratio = 14.4. organic compounds o3336 # 2007 International Union of Crystallography Experimental The compound was synthesized according to a reported procedure (Ding et al., 2001) and yellow blocks of (I) were grown from a dichloromethane/ diethyl ether solution (1:1 v/v) in about 75% yield. Analysis calculated for C 27 H 35 N 3 O 2 : C 74.79, H 8.14, N 9.69%; found: C 74.85, H 8.36, N 9.79%. RefinementIt is analogous to the examples (Sun et al., 2006), the pentyl chain (C18 to C12) is disordered over two positions; the occupancy factors refined to 0.52 (1):0.48 (1). The pairs of 1,2-related and 1,3-related distances were restrained to be equal within 0.01 Å. The H atoms were positioned geometrically (C-H = 0.93-0.97 Å) and refined as riding with U iso (H) = 1.2U eq (C) or 1.5U eq (methyl C).