Received 2 November 2011
In the title molecule, C30H36N2O2, the dihedral angles between the central benzene ring and the two benzene rings of the butylsalicylaldimine groups are 14.3 (2) and 40.6 (2)°. There are two strong intramolecular O-HN hydrogen bonds which form S(6) rings. The crystal studied was a non-merohedral twin with refined components of 0.270 (4) and 0.730 (4).
For applications of Schiff base ligands in pharmaceutical and catalytic research, see: Hashimoto & Maruoka (2007); Singh et al. (2009). For a related structure, see: You et al. (2010). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Data collection: SMART (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LH5371 ).
This work was supported by the Foundation of Shandong Educational Committee (No. J10LB63) and the Key Project of Science and Technology of JNMC.
Bernstein, J., Davis, R. E., Shimoni, L. & Chang, N.-L. (1995). Angew. Chem. Int. Ed. Engl. 34, 1555-1573.
Brandenburg, K. (1999). DIAMOND. Crystal Impact GbR, Bonn, Germany.
Bruker (2007). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Hashimoto, T. & Maruoka, K. (2007). Chem. Rev. 107, 5656-5682.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Singh, S., Bharti, N. & Mohapatra, P. P. (2009). Chem. Rev. 109, 1900-1947.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.
You, W., Yao, C. & Huang, W. (2010). Chin. J. Inorg. Chem. pp. 867-874.