organic compounds
The structure of the title compound [systematic name: 2-hydroxy-6-methyl-3-(1-methylethyl)benzaldehyde oxime] C11H15NO2, exhibits intra- as well as intermolecular hydrogen bonding, involving participation of the phenolic OH group in intramolecular hydrogen bonding and the hydroxyl group of the oxime in intermolecular hydrogen bonding. The H atom of the phenolic hydroxyl group forms a strong O—HN intramolecular hydrogen bond with an ON distance of 2.5788 (14) Å, which is in the middle of the expected range for such hydrogen bonds. The H atom of the hydroxyl group (in the oxime functionality) forms a weaker hydrogen bond with the phenolic hydroxyl group of a neighboring molecule [OO = 2.8317 (14) Å], forming an extended chain, as expected for phenolic aldoximes which have bulky substituents on the aryl ring.