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Abstract
The title compound, C21H20N2O2, a Schiff base ligand, contains two independent molecules (A and B) in the asymmetric unit, with similar conformations. In molecule A, the central benzene ring forms dihedral angles of 30.79 (13) and 23.56 (13)°, respectively, with the amino and benzyl benzene rings, while in molecule B these angles are 32.30 (13) and 13.13 (12)°. The molecular structure is stabilized by intramolecular N—H⋯N and C—H⋯O hydrogen bonds. The crystal structure is stabilized by N—H⋯N hydrogen bonds and N—H⋯π and C—H⋯π interactions.
Highlights
The title compound, C21H20N2O2, a Schiff base ligand, contains two independent molecules (A and B) in the asymmetric unit, with similar conformations
The molecular structure is stabilized by intramolecular N—HÁ Á ÁN and C—HÁ Á ÁO hydrogen bonds
The crystal structure is stabilized by N—HÁ Á ÁN hydrogen bonds and N—HÁ Á Á and C—HÁ Á Á interactions
Summary
Hamid,a‡ Hasnah Osman,a Reza Kiab and Hoong-Kun Funb*. Key indicators: single-crystal X-ray study; T = 100 K; mean (C–C) = 0.004 A; R factor = 0.070; wR factor = 0.192; data-to-parameter ratio = 16.6. The molecular structure is stabilized by intramolecular N—HÁ Á ÁN and C—HÁ Á ÁO hydrogen bonds. The crystal structure is stabilized by N—HÁ Á ÁN hydrogen bonds and N—HÁ Á Á and C—HÁ Á Á interactions. Related literature For hydrogen-bond motifs, see: Bernstein et al (1995). For bond-length data, see: Allen et al (1987). See: Al-Douh et al (2006a,b, 2007, 2008); Corden et al (1996); Govindasamy et al (1999); Pozharskii et al (1966)
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