7-Nitro-5H-1-benzothiopyrano[2,3-b]pyridin-5-one
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چکیده
منابع مشابه
7-Nitro-5H-1-benzothiopyrano[2,3-b]pyridin-5-one
In the mol-ecule of the title compound, C(12)H(6)N(2)O(3)S, the central heterocyclic ring is oriented at dihedral angles of 3.25 (6) and 2.28 (7)° with respect to the benzene and pyridine rings, respectively. The dihedral angle between the benzene and pyridine rings is 5.53 (7)°. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains.
متن کامل5-Nitro-1-benzofuran-2(3H)-one
In the crystal structure of the title compound, C(8)H(5)NO(4), essentially planar mol-ecules [largest deviation from the least-squares plane = 0.030 (2) Å] form stacks along the a-axis direction. Intercentroid separations between overlapping benzene rings within the stack are 3.6594 (12) Å and 3.8131 (12) Å. Mol-ecules from neighboring stacks are linked by weak C-H⋯O hydrogen bonds into inversi...
متن کامل5H-1-Benzothiopyrano[2,3-b]pyridin-5-one
Mol-ecules of the title compound, C(12)H(7)NOS, with one half-mol-ecule in the asymmetric unit, are disordered about a crystallographic centre of inversion. Refinement showed that the C=O group is disordered with the S atom and the N atom is disordered over four positions. Adjacent mol-ecules are connected through C-H⋯O hydrogen bonds and π⋯π inter-actions (centroid-centroid distances of 3.635 ...
متن کاملN-Cyclohexyl-5H,7H-13,15-dimethyl-9-nitro-5-oxophenanthrido[4,4a,5-bc][1,4]benzoxazepine-7-carboxamide
In the title compound, C(29)H(27)N(3)O(5), a dibenz[b,f][1,4]oxazepine derivative, the cyclo-hexane ring adopts a chair conformation, the oxazepine seven-membered ring has a twist-boat conformation, and the piperidin-2-one ring assumes a flattened boat conformation. Inter-molecular N-H⋯O hydrogen bonding between imino and nitro groups links two mol-ecules into a centrosymmetric dimer.
متن کامل(2S,3R)-3-(2-Bromophenyl)-2-nitro-2,3,6,7-tetrahydro-1-benzofuran-4(5H)-one
The title compound, C14H12BrNO4, has two chiral C atoms. The C atom next to the O atom in the di-hydro-furan ring has an S configuration, while the adjacent chiral C atom has an R configuration. The cyclo-hex-2-enone and di-hydro-furan rings both adopt envelope conformations, with the flap atoms (middle CH2 in cyclo-hex-2-enone and NO2-substituted C in di-hydro-furan) lying 0.612 (3) and 0.295 ...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2008
ISSN: 1600-5368
DOI: 10.1107/s1600536808007150