Hydrogen-bonding patterns in ferrocene derivatives: structures of 1,1'-diphenyl-1,1'-(1,1'-ferrocenediyl)diethanol and 1,1'-(1,1'-ferrocenediyl)diethanol
Gallagher, John F.ORCID: 0000-0002-7112-7450, Ferguson, George, Glidewell, Christopher and Zakaria, Choudhury M.
(1994)
Hydrogen-bonding patterns in ferrocene derivatives: structures of 1,1'-diphenyl-1,1'-(1,1'-ferrocenediyl)diethanol and 1,1'-(1,1'-ferrocenediyl)diethanol.
Acta Crystallographica Section C, 50
(1).
pp. 18-23.
ISSN 0108-2701
Racemic 1, l'-diphenyl- 1,1'-( 1, l'-ferrocenediyl)diethanol,
[Fe{(CsH4)C(Ph)MeOH}2] (I), crystallizes as hydrogen-
bonded dimeric aggregates with the Fe atoms on
twofold crystallographic axes and the four O atoms defining
a folded trapezium with O...O distances of 2.784 (2)
(x2), 2.877(3) and 2.795 (4)A. The four hydroxyl H
atoms are disordered equally over two orientations such
that there are two half-occupancy H-atom sites between
each hydrogen-bonded O-atom pair. Racemic 1,1'-(1, l'-
ferrocenediyl)diethanol, [Fe{(CsH4)C(H)MeOH}2] (II),crystallizes as hydrogen-bonded centrosymmetric dimers,
with O...O distances of 2.778 (2) and 2.764 (2) A and ordered hydroxyl H atoms. In (I), the dimers are formed
from either two RR or two SS molecules, while in (II) the
dimers each contain one RR and one SS molecule.