Add to ORKGR factor = 0.057; wR factor = 0.120; data-to-parameter ratio = 13.4. In the title compound, C14H11N3O3, the chromene ring is almost planar, with a maximum deviation of 0.065 (2) A ̊ from the mean plane for one of the C atoms. In the crystal, inversion dimers linked by pairs of N—H O hydrogen bonds generate R2 2(8) loops. The dimers are linked by C—H N and C— H O interactions into a three-dimensional network. An aromatic – stacking interaction, with a centroid–centroid distance of 3.562 (10) Å, is also observed. Related literature For related structures and background to coumarin, see
Open Access.In the title compound, C27H22N2O4, the dihedral angles between the central benzene ring ...
In the title coumarin derivative, C28H26N2O2, the coumarin unit is approximately planar, with a maxi...
The title compound, C19H14O4, was prepared by the reaction of 2-oxo-2H-chromene-3-acyl chloride with...
R factor = 0.048; wR factor = 0.148; data-to-parameter ratio = 19.5. In the title coumarin derivativ...
In the title coumarin derivative, C13H12O4, the 2H-chromene ring system is essentially planar [maxim...
R factor = 0.035; wR factor = 0.103; data-to-parameter ratio = 12.3. In the title compound, C19H17NO...
R factor = 0.045; wR factor = 0.113; data-to-parameter ratio = 13.4. In the title compound, C16H17NO...
In the title compound, C17H12O4, the dihedral angle between the coumarin ring system (r.m.s. deviati...
R factor = 0.066; wR factor = 0.163; data-to-parameter ratio = 13.7. In the title molecule, C17H12O5...
In the title compound, C12H10O4, the dihedral angle between the coumarin ring system [maximum deviat...
In the title compound, C17H12O5, the dihedral angle between the planes of the coumarin ring system (...
In the title compound, C20H18O4, the benzoate ring is oriented at an acute angle of 33.10 (12)° with...
In the title compound, C19H14O5, the dihedral angle between the coumarin ring system (r.m.s. deviati...
Open Access.In the title compound, C27H22N2O4, the dihedral angles between the central benzene ring ...
In the title coumarin derivative, C28H26N2O2, the coumarin unit is approximately planar, with a maxi...
The title compound, C19H14O4, was prepared by the reaction of 2-oxo-2H-chromene-3-acyl chloride with...
R factor = 0.048; wR factor = 0.148; data-to-parameter ratio = 19.5. In the title coumarin derivativ...
In the title coumarin derivative, C13H12O4, the 2H-chromene ring system is essentially planar [maxim...
R factor = 0.035; wR factor = 0.103; data-to-parameter ratio = 12.3. In the title compound, C19H17NO...
R factor = 0.045; wR factor = 0.113; data-to-parameter ratio = 13.4. In the title compound, C16H17NO...
In the title compound, C17H12O4, the dihedral angle between the coumarin ring system (r.m.s. deviati...
R factor = 0.066; wR factor = 0.163; data-to-parameter ratio = 13.7. In the title molecule, C17H12O5...
In the title compound, C12H10O4, the dihedral angle between the coumarin ring system [maximum deviat...
In the title compound, C17H12O5, the dihedral angle between the planes of the coumarin ring system (...
In the title compound, C20H18O4, the benzoate ring is oriented at an acute angle of 33.10 (12)° with...
In the title compound, C19H14O5, the dihedral angle between the coumarin ring system (r.m.s. deviati...
Open Access.In the title compound, C27H22N2O4, the dihedral angles between the central benzene ring ...
In the title coumarin derivative, C28H26N2O2, the coumarin unit is approximately planar, with a maxi...
The title compound, C19H14O4, was prepared by the reaction of 2-oxo-2H-chromene-3-acyl chloride with...