Research Article: (1R,2R,E,E)-N,N′-Bis(4-chloro­benzyl­idene)cyclo­hexane-1,2-diamine

Date Published: February 01, 2012

Publisher: International Union of Crystallography

Author(s): Hamid Arvinnezhad, Khosrow Jadidi, Behrouz Notash.


The title Schiff base ligand, C20H20Cl2N2, was prepared by condensation of commercially available p-chloro­benzalde­hyde and (R,R)-1,2-diammonium­cyclo­hexane mono-(+)-tartrate. The cyclo­hexane ring adopts a chair conformation. The dihedral angle between the two aromatic rings is 62.52 (8)°. The crystal structure is stabilized by an inter­molecular C—H⋯Cl hydrogen bond.

Partial Text

For the crystal structures of some Schiff bases derived from cyclo­hexane-1,2-diamine, see: Fan et al. (2011 ▶); Glidewell et al. (2005 ▶); Saleh Salga et al. (2010 ▶). For applications of chiral Schiff base ligands, see: Da Silva et al. (2011 ▶); Przybylski et al. (2009 ▶); Gupta & Sutar (2008 ▶); Dhar & Taploo (1982 ▶); Munslow et al. (2001 ▶); Gillespie et al. (2002 ▶); Kureshy et al. (2001 ▶); Takenaka et al. (2002 ▶). For the synthesis of the title compound, see: Larrow & Jacobsen (1998 ▶); Periasamy et al. (2001 ▶).