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Coumarin-3-carboxylic acid.
In the structure of the title compound, C10H6O4, there is a single intramolecular hydrogen bond and there are a number of significant intermolecular C-H...O attractive interactions, which account for the rather high density for an ordinary monocarboxylic acid.
gamma-Aminobutyric acid: a novel tetragonal phase.
There is evidence suggestive of an intramolecular bridging hydrogen bond involving the N atom, an O atom and a methylene H atom, as previously proposed as a stabilizing factor for the gauche conformation observed in the monoclinic phase.
2-Acetylbenzoic acid: phthalide form.
In the structure of the phthalide form of 2-acetylbenzoic acid, C9H8O3, there is a single type of hydrogen bond. Each molecule donates one and accepts one hydrogen bond. The hydrogen-bonded molecules
2-Aminonicotinic acid.
2-Aminonicotinic acid, C6H6N2O2, crystallized in the centrosymmetric space group P2(1)/c in the zwitterionic form in the b axis with intramolecular N--H...O hydrogen bond present.
3-Aminopyrazine-2-carboxylic acid.
3-Aminopyrazine-2-carboxylic acid, C5H5N3O2, displays an extensive network of intra- and intermolecular hydrogen bonds which are undoubtedly responsible for the modest values of the displacement
Fluorene-1-carboxylic acid.
In fluorene-1-carboxylic acid, C14H10O2, the sole hydrogen bond is of the cyclic dimer type about a center of symmetry. The carboxyl H atom is ordered. Distances in the fluorene core are very similar
The title compound, C18H18N2O2, crystallizes in the centrosymmetric monoclinic space group C2/c with half the mol­ecule as the asymmetric unit (mol­ecules are located on inversion centers). π–π
DL-3-aminoisobutyric acid monohydrate.
The title acid, 3-amino-2-methylpropanoic acid monohydrate, C4H9NO2.H2O, crystallized in the centrosymmetric space group Pbca in the zwitterionic form. The three H atoms on N, which are involved in
8-Aminocaprylic acid.
The title acid, 8-aminooctanoic acid, C8H17NO2, crystallized in the centrosymmetric space group P2(1)/n in the zwitterionic form with complex network of hydrogen bonds ensues in which chains predominate.
Structure determination and hydrogen bonding of 1-naphthoxyacetic acid, a potential plant growth hormone
Abstract1-Napthoxyacetic acid crystallizes in the centrosymmetric space group C2/c (No. 15) with cell dimensions of a=14.273(2)Å, b=5.845(1)Å, c=24.211(1)Å, β =105.815(2)°. The structure of the title