RESUMO
In the title mol-ecule, C16H15BrN2S2, the central imidazo[2,1-b]thia-zole fragment is almost planar (r.m.s. deviation = 0.012â Å), and the fused 5,6,7,8-tetra-hydro-benzene ring adopts an unsymmetrical half-chair conformation. The dihedral angle between the imidazo[2,1-b]thia-zole and benzene planes is 18.25â (4)°. The terminal methyl-sulfanyl substituent lies practically within the benzene plane [the dihedral angle between the corresponding planes is 7.20â (10)°] and is turned toward the C-Br bond. In the crystal, mol-ecules form infinite chains along [100] via secondary Brâ¯N inter-actions [3.1861â (16)â Å]. The chains are arranged at van der Waals distances.
RESUMO
In the title mol-ecule, C9H6BrNS, the planes of the 2-bromo-1,3-thia-zole and phenyl rings are inclined at 7.45â (10)° with respect to each other. In the crystal, mol-ecules related by a centre of symmetry are held together via π-π inter-actions, with a short distance of 3.815â (2)â Å between the centroids of the five- and six-membered rings. The crystal packing exhibits short inter-molecular Sâ¯Br contacts of 3.5402â (6)â Å.
RESUMO
In the title mol-ecule, C15H9N3O2S, the central imidazo[2,1-b][1,3]benzo-thia-zole heterotricyclic unit is essentially planar (r.m.s. deviation = 0.021â Å). The terminal phenyl ring and nitro group are twisted by 9.06â (1) and 11.02â (4)°, respectively, from the mean plane of the heterotricycle. In the crystal, mol-ecules are linked by π-π stacking inter-actions into columns along [100]; the inter-planar distance between neighboring imidazo[2,1-b][1,3]benzo-thia-zole planes within the columns is 3.370â (2)â Å. Furthermore, the columns interact with each other by secondary Sâ¯O [2.9922â (10) and 3.1988â (11)â Å] inter-actions, forming a three-dimensional framework.
RESUMO
The title compound, C17H12O, has an E conformation about the C=C bond. The C-C C-C torsion angle is 7.7â (2)°, and the mean planes of the phenyl-ethyl-enone [r.m.s. deviation = 0.059â (1)â Å] and phenyl-acetyl-ene [r.m.s. deviation = 0.023â (1)â Å] fragments form a dihedral angle of 14.16â (7)°. In the crystal, weak C-Hâ¯O inter-actions link the mol-ecules into zigzag chains propagated in [010].
RESUMO
In the title mol-ecule, C16H11BrN2OS, the central imidazo[2,1-b][1,3]benzothia-zole tricycle is essentially planar (r.m.s. deviation = 0.021â Å). The terminal phenyl ring is twisted at 36.18â (5)° from the mean plane of the tricycle. In the crystal, pairs of eak C-Hâ¯O hydrogen bonds link mol-ecules into centrosymmetric dimers, which are further packed into stacks along the a axis.
RESUMO
In the title compound, C12H9ClN2S, the imidazo[2,1-b]thia-zole fragment is planar (r.m.s. deviation = 0.003â Å), and the benzene ring is twisted slightly [by 5.65â (6)°] relative to this moiety. In the crystal, mol-ecules are linked by π-π stacking inter-actions into columns along [010]. The mol-ecules within the columns are arranged alternatively by their planar rotation of 180°. Thus, in the columns, there are the two types of π-π stacking inter-actions, namely, (i) between two imidazo[2,1-b]thia-zole fragments [inter-planar distance = 3.351â (2)â Å] and (ii) between an imidazo[2,1-b]thia-zole fragment and the phenyl ring [inter-planar distance = 3.410â (5)â Å]. There are no short contacts between the columns.