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In the title compound, C19H14FNS2, the seven-membered thia­zepine ring adopts a slightly distorted twist boat conformation. The dihedral angle between the benzene rings is 53.6 (1)°. The mean plane of the thia­zepine ring is twisted by 34.3 (7)° and 36.6 (7)° from the benezene rings. A C—H...F interaction generates stacking of molecules along the ab plane.

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In the title compound, C13H13NO3, the conformation across the C=C bond is synperiplanar, the torsion angle of the segment C(ring)—C=C—C(N) being 3.2 (5)°. In the crystal, mol­ecules are linked into inversion dimers, arranged in a zigzag pattern, through two C—H...O inter­actions generating R22(10) and R22(14) motifs. These dimers are arranged in a zigzag pattern in the crystal structure. The mol­ecules are further linked along the c axis through weak C—H...π inter­actions, and weak π...π inter­actions [centroid–centroid separation = 3.9986 (17) Å] are also observed.

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In the title compound, C10H5F5O2, the C=O bonds are syn to one another. In the crystal, mol­ecules are linked into C(9) chains parallel to [101] through weak C—H...O inter­actions, with the O atom adjacent to the –CF3 group acting as the acceptor.

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The asymmetric unit of the title compound, C11H10N4O3, contains two independent mol­ecules in which the benzene rings make dihedral angles of 38.3 (2) and 87.1 (2)° with respect to the triazole rings. In the crystal, the mol­ecules are linked by C—H...O hydrogen bonds, forming chains along [021]. Further, weak C—O...π [3.865 (5) Å, 83.8 (3)°] and N—O...π [3.275 (5) and 3.240 (6) Å, 141.8 (4) and 102.8 (3)°] inter­actions are observed.
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