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The asymmetric unit of the title compound, C18H14ClNO3, contains two independent mol­ecules (A and B). In both mol­ecules, the cyclo­hexa­none ring has a chair conformation. The dihedral angles between the pyran ring and the pyridine and chloro­phenyl rings are 2.13 (9) and 2.19 (9)°, respectively, in A, and 0.82 (9) and 1.93 (9)°, respectively, in B. The carbonyl O atoms deviate from the pyran and benzene rings to which they are attached by −0.092 (2) and 0.064 (2) Å, respectively, in A, and by −0.080 (2) and −0.063 (2) Å, respectively, in B. In the crystal, the A mol­ecules are linked via C—H...O hydrogen bonds, forming double-stranded chains along [100]. They lie parallel to the double-stranded chains formed by the B mol­ecules, which are also linked via C—H...O hydrogen bonds. The chains stack up the c axis in an –AABBAA– manner, with a number of π–π inter­actions involving A and B mol­ecules; the centroid–centroid distances vary from 3.4862 (11) to 3.6848 (11) Å

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In the title compound, C18H15NO3, the fused benzopyran and pyridine rings are essentially coplanar [r.m.s. deviation = 0.0533 Å with a maximum deviation of 0.080 (1) Å for a benzene C atom]. The cyclo­hexa­none ring adopts an envelope conformation with the dimethyl-substituted C atom 0.660 (2) Å out of the plane formed by the remaining ring atoms (r.m.s. deviation = 0.0305 Å). The dihedral angle between the mean planes of the pyran and cyclo­hexa­none rings is 12.95 (6)°. In the crystal, mol­ecules are linked via C—H...O hydrogen bonds, leading to chains running along [011].
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