Different classical hydrogen-bonding patterns in three salicylaldoxime derivatives, 2-HO-4-XC₆H₃C=NOH (X= Me, OH and MeO)

Abstract

The crystal structures of three salicyaldoxime compounds are discussed together with Hirshfeld surface and fingerprint analyses.

Crystal structures and Hirshfeld surfaces of four methoxybenzaldehyde oxime derivatives, 2-MeO-XC6H3C=NOH (X= H and 2-, 3- and 4-MeO): different conformations and hydrogen-bonding patterns

“…However, the involvement of weaker intermolecular interactions, such as C-HÁ Á ÁO hydrogen bonds,interactions and interactions involving the substituents, can have a significant influence on the supramolecular arrays generated. In a continuation of recent studies on aldoximes (Low et al 2018;Gomes et al, 2018), we have determined the crystal structures of four methoxybenzaldehyde derivatives, namely 2-MeO-X-C 6 H 3 CH NOH where X = H in 1, X = 3-MeO in 2, X = 4-MeO in 3 and X = 5-MeO in 4. The aim of the study was to further investigate the occurrence of R 2 2 (6) dimers and C(3) chains in a series of related compounds.…”