Weak C—H...O hydrogen bonds in anisaldehyde, salicylaldehyde and cinnamaldehyde
Roland Boese, e-mail: [email protected]
Abstract
In situ cryocrystallization has been employed to grow single crystals of 4-methoxybenzaldehyde (anisaldehyde), C8H8O2, 2-hydroxybenzaldehyde (salicylaldehyde), C7H6O2, and (2E)-3-phenylprop-2-enal (cinnamaldehyde), C9H8O, all of which are liquids at room temperature. Several weak C—H...O interactions of the types Caryl—H...O, Cformyl—H...O and Csp3—H...O are present in these related crystal structures.
