The alpha(2)-polymorph of salicylideneaniline

• Published in: Acta Crystallographica Section C-Crystal Structure Communications (ISSN: 0108-2701), vol. 61, p. O317-O320
• Publication date: 2005

N-Salicylideneaniline (SA), C13H11NO, belongs to the large family of aromatic Schiff bases. It is of particular importance owing to its reversible photoreactivity. SA forms two photochromic polymorphs, both with two non-coplanar benzene rings. In addition, we have recently discovered a planar polymorph, named the β-polymorph, which will be discussed in a subsequent paper. We report here the structure of the α(2)-polymorph in the orthorhombic crystal system. This compound exhibits a strong intramolecular O-H••• N hydrogen bond and the dihedral angle between the two rings varies with temperature.

Note: Part 5 923NA Times Cited:0 Cited References Count:43

Keywords: central bond-length ; short ethylene bond ; x-ray-diffraction ; molecular-structure ; solid-state ; n-salicylideneaniline ; crystal-structure ; schiff-bases ; motion ; topochemistry

Reference

• LCR-ARTICLE-2005-002
• doi:NA
• View record in Web of Science

• URL: http://journals.iucr.org/c/issues/2005/05/00/sq1198/index.html

Record created on 2006-03-07, modified on 2012-03-21