title: (-)-gibberic acid: hydrogen-bonding pattern of the monohydrate of a non-racemic tetracyclic delta-keto acid derivative of gibberellin A3.
abstract: In the the title compound, 1,7-dimethyl-8-oxo-4balpha,7alpha-gibba-1,3,4a(10a)-triene-10beta-carboxylic acid monohydrate, C18H20O3*H2O, the water of hydration accepts a hydrogen bond from the carboxyl and donates hydrogen bonds to the carboxyl carbonyl and the ketone in two different screw-related neighbors, which are mutually translational, yielding a complex three-dimensional hydrogen-bonding array.
authors.affiliation: Carl A. Olson Memorial Laboratories, Department of Chemistry, Rutgers University, Newark, NJ 07102, USA.
authors.forename: H W
authors.initials: HW
authors.lastname: Thompson
authors.forename: R A
authors.initials: RA
authors.lastname: Lalancette
mesh_terms: D018360:Crystallography, X-Ray; D005875:Gibberellins / Q000737:chemistry*; D006860:Hydrogen Bonding; D007651:Keto Acids / Q000737:chemistry; D008958:Models, Molecular; D008968:Molecular Conformation; D013237:Stereoisomerism
chemical_list: D005875:Gibberellins; D007651:Keto Acids; C435324:gibberic acid; C422660:gibberellin A1