Weak C-H···O hydrogen bonds in anisaldehyde, salicylaldehyde and cinnamaldehyde
Michael T Kirchner1, Dieter Bläser, Roland Boese
1Faculty of Chemistry, University Duisburg-Essen, Universitätsstrasse 7, D-45117 Essen, Germany.
Abstract:
In situ cryocrystallization has been employed to grow single crystals of 4-methoxybenzaldehyde (anisaldehyde), C(8)H(8)O(2), 2-hydroxybenzaldehyde (salicylaldehyde), C(7)H(6)O(2), and (2E)-3-phenylprop-2-enal (cinnamaldehyde), C(9)H(8)O, all of which are liquids at room temperature. Several weak C-H···O interactions of the types C(aryl)-H···O, C(formyl)-H···O and Csp(3)-H···O are present in these related crystal structures.
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