منابع مشابه
N-(2-Oxo-2H-chromen-3-yl)benzamide
The phenyl ring in title mol-ecule, C(16)H(11)NO(3), forms a dihedral angle of 7.69 (6)° with the fused ring system. The observed conformation is stabilized by intra-molecular N-H⋯O and C-H⋯O inter-actions. In the crystal, supra-molecular chains are formed along the b axis which are mediated by π-π inter-actions [centroid-centroid distance = 3.614 (2) Å].
متن کاملN-(2-Oxo-2H-chromen-3-yl)cyclohexanecarboxamide
In the title compound, C16H17NO3, the coumarin moiety is essentially planar [maximum deviation from the mean plane formed by the C and O atoms of the coumarin = 0.0183 (12) Å] and that the cyclo-hexane ring adopts the usual chair conformation. The dihedral angle between the mean plane of the coumarin residue and the plane of the amide residue (defined as the N, C and O atoms) is 18.9 (2)°. Ther...
متن کامل4-Hydroxy-3-[(4-hydroxy-6,7-dimethyl-2-oxo-2H-chromen-3-yl)(4-oxo-4H-chromen-3-yl)methyl]-6,7-dimethyl-2H-chromen-2-one
In the title compound, C(32)H(24)O(8), the mol-ecular structure is disordered over two positions with refined site occupancies of 0.8746 (10) and 0.1254 (10). The mean plane of the three chromeno rings make dihedral angles with each other of 65.12 (4), 62.91 (4) and 59.70 (4)° in the major occupancy component and 59.1 (3), 66.1 (3) and 58.8 (3)° in the minor component. Intra-molecular O-H⋯O hyd...
متن کاملCrystal structure of 2-oxo-2H-chromen-3-yl propanoate
In the title compound, C12H10O4, the dihedral angle between the coumarin ring system [maximum deviation = 0.033 (8) Å] and the propionate side chain is 78.48 (8)°. In the crystal, weak C-H⋯O hydrogen bonds generate inversion dimers and and C-H⋯π and π-π inter-actions link the dimers into a three-dimensional network. A quantum chemical calculation is in good agreement with the observed structure.
متن کامل2-Oxo-2H-chromen-4-yl propionate
In the title compound, C12H10O4, the atoms of the 2-oxo-2H-chromene ring system and the non-H atoms of the 4-substituent all lie on a crystallographic mirror plane. The mol-ecular structure exhibits an intra-molecular C-H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, mol-ecules form R 3 (2)(12) trimeric units via C-H⋯O inter-actions which propagate into layers parallel to the a...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2010
ISSN: 1600-5368
DOI: 10.1107/s1600536810008275