Structures of tribenzylmethanol and 1,2,3-triphenyl-2-propanol
Ferguson, George, Gallagher, John F.ORCID: 0000-0002-7112-7450, Glidewell, Christopher, Liles, David C. and Zakaria, Choudhury M.
(1993)
Structures of tribenzylmethanol and 1,2,3-triphenyl-2-propanol.
Acta Crystallographica Section C, 49
(4).
pp. 820-824.
ISSN 0108-2701
The tribenzylmethanol molecule, (PhCH2)3COH, has approximate
threefold symmetry in the solid state. The hydroxyl
H atom is disordered unequally over three orientations
and is not involved in hydrogen bonding. The 1,2,3-triphenyl-2-propanol molecule, Ph(PhCH2)2COH, crystallizes
with two molecules per asymmetric unit which
differ slightly in conformation. In one of the molecules
the hydroxyl H atom is disordered equally over two sites,
whereas in the other molecule there is no disorder. As in
the tribenzylmethanol molecule, there is no intermolecular
O--H...O hydrogen bonding, presumably because of
the steric bulk of the molecules and their packing which
prevents the close approach of the O atoms of adjacent
molecules.