“…The asymmetric unit of the title compound, C(12)H(7)NO(3)S, contains two independent mol­ecules with different geometric­al configurations. The dihedral angles between the benzene and pyridine rings in the two mol­ecules are 3.7 (2) and 5.40 (19)°. …”
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“…The dihedral angle between the benzene and pyridine rings is 5.53 (7)°. …”
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“…The two symmetry-independent mol­ecules in the asymmetric unit of the title compound, C(15)H(13)NO(2), differ in conformation, with the virtually planar 4-methyl­aniline (r.m.s. deviations of 0.0511 and 0.0082 Å) and piperonal groups (r.m.s. deviations of 0.0241 and 0.0486 Å) forming dihedral angles of 19.40 (5) and 42.90 (6)°. In the crystal, mol­ecules are linked by C—H⋯O and C—H⋯π inter­actions. …”
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“…In the title compound, C(13)H(17)NO(3)S, the dihedral angles between the thio­phene ring and the ethyl ester and acetamide groups are 5.21 (13) and 10.06 (16)°, respectively. …”
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“…The 5-amino-2-hy­droxy­benzoic acid units [r.m.s. deviations of 0.0323 and 0.0414 Å] and 2,6-dichloro­benzaldehyde groups [r.m.s. deviations of 0.0285 and 0.0226 Å] are roughly planar and oriented at dihedral angles of 11.69 (13) and 83.12 (6)° in the two mol­ecules. …”
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“…In the title compound, C(15)H(11)NO(4), the dihedral angle between the aromatic rings is 23.8 (2)° and an intra­molecular O—H⋯N hydrogen bond generates an S(6) ring. …”
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“…In the title compound, C(14)H(12)N(2)O(2), the dihedral angle between the phenyl ring and the 3,4-dimethyl­pyrano[2,3-c]pyrazol-6(1H)-one system is 7.28 (6)°. …”
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“…The mol­ecule of the title compound, C(18)H(19)NO(3)S, adopts an approximately planar conformation: the thio­phene and phenyl rings form a dihedral angle of 8.13 (11)° while the ethyl ester group (r.m.s. deviation = 0.0217 Å) is inclined at 1.25 (14) and 8.61 (13)°, respectively, to the thio­phene and phenyl rings. …”
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“…In mol­ecule A, the dihedral angle between the pyridazine and benzene rings is 6.5 (2)°, whereas in mol­ecule B it is 27.93 (7)°. …”
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