TY - JOUR
T1 - (+)-14bα-3-Oxoglycyrrhetinic acid
T2 - Catemeric hydrogen bonding in a non-racemic triterpenoid diketo acid
AU - Thompson, Hugh W.
AU - Lalancette, Roger A.
AU - Kikolski, Elizabeth M.
PY - 2006/12
Y1 - 2006/12
N2 - The title compound, (+)-10,13-dioxo-2α,4aβ,6aα,6bα, 9,9,12aβ-heptamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8aα,9,10,11,12,12a, 12bα,13,14bα-eicosahydropicene-2β-carboxylic acid, C 30H44O4, aggregates as carboxyl-to-ketone hydrogen-bonding catemers. Hydrogen bonds progress from the carboxyl group of one molecule to the remote-ring ketone group of a translationally related neighbor in an adjoining cell connected by a common a cell-edge [O⋯O = 2.766 (3) Å and O-H⋯O = 163Æ], yielding chains that extend in the [011] direction. In the crystal structure, there are also four C-H⋯O close contacts. λ 2006 International Union of Crystallography All rights reserved.
AB - The title compound, (+)-10,13-dioxo-2α,4aβ,6aα,6bα, 9,9,12aβ-heptamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8aα,9,10,11,12,12a, 12bα,13,14bα-eicosahydropicene-2β-carboxylic acid, C 30H44O4, aggregates as carboxyl-to-ketone hydrogen-bonding catemers. Hydrogen bonds progress from the carboxyl group of one molecule to the remote-ring ketone group of a translationally related neighbor in an adjoining cell connected by a common a cell-edge [O⋯O = 2.766 (3) Å and O-H⋯O = 163Æ], yielding chains that extend in the [011] direction. In the crystal structure, there are also four C-H⋯O close contacts. λ 2006 International Union of Crystallography All rights reserved.
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U2 - 10.1107/S1600536806045788
DO - 10.1107/S1600536806045788
M3 - Article
AN - SCOPUS:33845426446
SN - 1600-5368
VL - 62
SP - o5482-o5484
JO - Acta Crystallographica Section E: Structure Reports Online
JF - Acta Crystallographica Section E: Structure Reports Online
IS - 12
ER -