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In the title mol­ecule, C18H17N5O3S2, the heterocyclic thia­zine ring adopts a twist boat conformation, with the S and N atoms displaced by 0.480 (7) and 0.205 (8) Å, respectively, on opposite sides of the mean plane formed by the remaining ring atoms. The pyrazole and benzene rings are tilted at an angle of 10.9 (2)° with respect to one another. The crystal structure is stabilized by inter­molecular N—H...O and C—H...N hydrogen bonds, resulting in dimers forming nine-membered rings of graph-set motif R22(9). In addition, inter­molecular C—H...O inter­actions result in chains of mol­ecules along the c axis, further consolidating the crystal packing.

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In the title mol­ecule, C8H9NS, the mean plane of the carbothio­amide group is twisted slightly with respect to the mean plane of the benzene ring, making a dihedral angle of 17.03 (10)°. The crystal structure is stabilized by inter­molecular N—H...S hydrogen bonds, resulting in the formation of eight-membered rings lying about inversion centers and representing R22(8) and R42(8) motifs. Futhermore, these hydrogen bonds build up chains parallel to the b axis.

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The asymmetric unit of the title compound, C8H9NOS, contains two independent mol­ecules with the meth­oxy groups oriented in opposite conformations. The mean planes of the carbothio­amide groups are tilted by 7.88 (15) and 11.16 (9)° from the mean planes of the benzene rings. In the crystal, the mol­ecules form dimers via intermolecular N—H...S inter­molecular hydrogen bonds, resulting in eight-membered rings of R22(8) graph-set motif. The dimers are further linked by C—H...O hydrogen bonds into chains along the c axis. Adjacent chains inter­act through inter­molecular N—H...S hydrogen bonds, generating eight-membered rings of R42(8) graph-set motif.

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The title mol­ecule, C16H13ClO2, is trans with respect to the C=C double bond. The dihedral angles between the mean plane of the prop-2-en-1-one unit and those of the 3-chloro- and 4-meth­oxy-substituted benzene rings are 20.93 (9) and 20.42 (10)°, respectively, and the dihedral angle between the mean planes of the two benzene rings is 40.96 (5)°. The crystal structure is stabilized by weak inter­molecular C—H...O hydrogen bonds, forming chains along the b axis.
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