2-Hydroxy-6,6-dimethylbicyclo[3.1.1]heptane-2-carboxylic acid
نویسندگان
چکیده
منابع مشابه
2-Chloroquinoline-3-carboxylic acid
The crystal structure of the title compound, C(10)H(6)ClNO(2), can be described by two types of crossed layers which are parallel to (110) and (10). The crystal packing is stabilized by inter-molecular C-H⋯O and O-H⋯N hydrogen bonds, resulting in the formation of a two-dimensional network and reinforcing the cohesion of the structure.
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In the title compound, C(5)H(5)NO(2), the pyrrole ring and its carboxyl substituent are close to coplanar, with a dihedral angle of 11.7 (3)° between the planes. In the crystal structure, adjacent mol-ecules are linked by pairs of O-H⋯O hydrogen bonds to form inversion dimers. Additional N-H⋯O hydrogen bonds link these dimers into chains extending along the a axis.
متن کامل2-Bromopyridine-3-carboxylic acid
The carboxylic acid residue in the title compound, C(6)H(4)BrNO(2), is twisted out of the plane of the other atoms, as indicated by the (Br)C-C-C-O(carbon-yl) torsion angle of -20.1 (9)°. In the crystal, supra-molecular chains mediated by O-H⋯N hydrogen bonds are formed with base vector [201] and C-H⋯O inter-actions reinforce the packing.
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Barium salts of dibenzylidene cystines 8a-c were obtained from the reaction of Lcystine with benzaldehyde or its derivatives in the presence of barium hydroxide. Their reduction with zinc and hydrochloric acid in methanol yielded the Narylmethylcysteines ?9a-c?. These can, in turn, be converted by esterification into the methyl esters ?10 a-c. ?Reaction of N, N'-carbonyl diimidazole (Im C...
متن کاملBis(μ-2′-carboxylatobiphenyl-2-carboxylic acid-κ2 O 2:O 2′)bis[(2,2′-bipyridine-κ2 N,N′)(2′-carboxylatobiphenyl-2-carboxylic acid-κO 2′)zinc(II)]
In the dimeric title compound, [Zn(2)(C(14)H(9)O(4))(4)(C(10)H(8)N(2))(2)], the Zn(II) ions are penta-coordinated by one 2,2'-bipyridyl ligand and by three O atoms from three 2'-carboxyl-atobiphenyl-2-carboxylic acid ligands. Two of the 2'-carboxyl-atobiphenyl-2-carboxylic acid ligands act as bridging ligands and, together with two zinc(II) cations, produce an 18-membered ring system. The remai...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809041385