title: A second monoclinic polymorph of 3,5-di-tert-butyl-2-hy-droxy-benzaldehyde.
abstract: In the title mol-ecule, C15H22O2, there is an intra-molecular hydrogen bond involving the hy-droxy and aldehyde groups and forming an S(6) ring. The mean plane of the non-H atoms of this ring [(H)O-C C-C=O, with a maximum deviation of 0.013 (1) Å] are essentially coplanar with the benzene ring, forming a dihedral angle of 2.29 (8)°.
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia ; Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203 Jeddah, Saudi Arabia.
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng