O-H...π(arene) intermolecular hydrogen bonding in the structure of 1,1,2-triphenylethanol
Ferguson, George, Gallagher, John F.ORCID: 0000-0002-7112-7450, Glidewell, Christopher and Zakaria, Choudhury M.
(1994)
O-H...π(arene) intermolecular hydrogen bonding in the structure of 1,1,2-triphenylethanol.
Acta Crystallographica Section C, 50
(1).
pp. 70-73.
ISSN 0108-2701
The 1,1,2-triphenylethanol molecule, Ph2(PhCH2)COH
(I), forms centrosymmetric dimers in the solid state.
The shortest O-..O separation, 5.837 (3)A,, is too long
for any O--H..-O hydrogen-bond formation. Instead,
there are O--H~..π(arene) interactions between the
hydroxyl group of one molecule and a phenyl group of
a centrosymmetrically related molecule. The O...C and
H-..C distances between the hydroxyl group and the
closest phenyl-ring C atom are 3.525 (4) and 2.73 (4)~,,
respectively. These intermolecular contacts are the only
driving force towards dimer formation in the solid state.