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Bunev AS, Sukhonosova EV, Purygin PP, Ostapenko GI, Khrustalev VN. 2-Phenyl-5,6,7,8-tetra-hydro-imidazo[2,1-b][1,3]benzo-thia-zole. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o668. [PMID: 24940249 PMCID: PMC4051062 DOI: 10.1107/s1600536814010885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Accepted: 05/12/2014] [Indexed: 11/17/2022]
Abstract
The title compound, C15H14N2S, crystallizes with two independent mol-ecules in the asymmetric unit. The central imidazo[2,1-b][1,3]benzo-thia-zole unit is planar (r.m.s. deviations of 0.010 and 0.008 Å for the two independent mol-ecules). The fused tetra-hydro-hexane ring adopts a half-chair conformation. The phenyl substituent is twisted by 16.96 (13) and 22.89 (12)° relative to the central imidazo[2,1-b][1,3]benzo-thia-zole unit in the two mol-ecules. In the crystal, there are no significant intermolecular interactions present.
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Affiliation(s)
- Alexander S. Bunev
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Elena V. Sukhonosova
- Department of Organic, Bioorganic and Medicinal Chemistry, Samara State University, 1 Akademician Pavlov St, Samara 443011, Russian Federation
| | - Petr P. Purygin
- Department of Organic, Bioorganic and Medicinal Chemistry, Samara State University, 1 Akademician Pavlov St, Samara 443011, Russian Federation
| | - Gennady I. Ostapenko
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Victor N. Khrustalev
- X-Ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, B–334, Moscow 119991, Russian Federation
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Bunev AS, Sukhonosova EV, Statsyuk VE, Ostapenko GI, Khrustalev VN. 3-Bromo-2-[4-(methyl-sulfan-yl)phen-yl]-5,6,7,8-tetra-hydro-1,3-benzo-thia-zolo[3,2-a]imidazole. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o596-7. [PMID: 24860393 PMCID: PMC4011264 DOI: 10.1107/s1600536814008976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 04/20/2014] [Indexed: 11/10/2022]
Abstract
In the title mol-ecule, C16H15BrN2S2, the central imidazo[2,1-b]thia-zole fragment is almost planar (r.m.s. deviation = 0.012 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 18.25 (4)°. The terminal methyl-sulfanyl substituent lies practically within the benzene plane [the dihedral angle between the corresponding planes is 7.20 (10)°] and is turned toward the C-Br bond. In the crystal, mol-ecules form infinite chains along [100] via secondary Br⋯N inter-actions [3.1861 (16) Å]. The chains are arranged at van der Waals distances.
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Affiliation(s)
- Alexander S. Bunev
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Elena V. Sukhonosova
- Department of Organic, Bioorganic and Medicinal Chemistry, Samara State University, 1 Akademician Pavlov St, Samara 443011, Russian Federation
| | - Vladimir E. Statsyuk
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Gennady I. Ostapenko
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Victor N. Khrustalev
- X-Ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, B-334, Moscow 119991, Russian Federation
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3
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Bunev AS, Sukhonosova EV, Statsyuk VE, Ostapenko GI, Khrustalev VN. 7-Nitro-2-phenyl-imidazo[2,1-b][1,3]benzo-thia-zole. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o143-4. [PMID: 24764868 PMCID: PMC3998307 DOI: 10.1107/s1600536814000476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 01/08/2014] [Indexed: 06/03/2023]
Abstract
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 = 0.021 Å). The terminal phenyl ring and nitro group are twisted by 9.06 (1) and 11.02 (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 3.370 (2) Å. Furthermore, the columns interact with each other by secondary S⋯O [2.9922 (10) and 3.1988 (11) Å] inter-actions, forming a three-dimensional framework.
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Affiliation(s)
- Alexander S. Bunev
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Elena V. Sukhonosova
- Department of Organic, Bioorganic and Medicinal Chemistry, Samara State University, 1 Akademician Pavlov St, Samara 443011, Russian Federation
| | - Vladimir E. Statsyuk
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Gennady I. Ostapenko
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya St, Togliatti 445667, Russian Federation
| | - Victor N. Khrustalev
- X-Ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, B-334, Moscow 119991, Russian Federation
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Bunev AS, Sukhonosova EV, Syrazhetdinova DR, Statsyuk VE, Ostapenko GI, Khrustalev VN. 3-Bromo-7-meth-oxy-2-phenyl-imidazo[2,1-b][1,3]benzothia-zole. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o531. [PMID: 23634072 PMCID: PMC3629585 DOI: 10.1107/s1600536813006582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Accepted: 03/07/2013] [Indexed: 11/16/2022]
Abstract
In the title mol-ecule, C16H11BrN2OS, the central imidazo[2,1-b][1,3]benzothia-zole tricycle is essentially planar (r.m.s. deviation = 0.021 Å). The terminal phenyl ring is twisted at 36.18 (5)° from the mean plane of the tricycle. In the crystal, pairs of eak C-H⋯O hydrogen bonds link mol-ecules into centrosymmetric dimers, which are further packed into stacks along the a axis.
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Affiliation(s)
- Alexander S. Bunev
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya Street, Togliatti 445667, Russian Federation
| | - Elena V. Sukhonosova
- Department of Bioorganic and Medicinal Chemistry, Samara State University, 1 Academika Pavlova Street, Samara 443011, Russian Federation
| | - Dinara R. Syrazhetdinova
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya Street, Togliatti 445667, Russian Federation
| | - Vladimir E. Statsyuk
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya Street, Togliatti 445667, Russian Federation
| | - Gennady I. Ostapenko
- Department of Chemistry and Chemical Technology, Togliatti State University, 14 Belorusskaya Street, Togliatti 445667, Russian Federation
| | - Victor N. Khrustalev
- X-ray Structural Centre, A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, B-334, Moscow 119991, Russian Federation
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Fun HK, Hemamalini M, Umesha K, Sarojini BK, Narayana B. 6-Fluoro-2-(4-methoxyphenyl)imidazo[2,1- b][1,3]benzothiazole. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o3265-6. [PMID: 22199773 PMCID: PMC3238924 DOI: 10.1107/s1600536811046666] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 11/05/2011] [Indexed: 12/02/2022]
Abstract
The asymmetric unit of the title compound, C16H11FN2OS, comprises two independent molecules in which the benzothiazole rings are essentially planar, with maximum deviations of 0.038 (2) and 0.045 (3) Å. The central benzothiazole ring makes dihedral angles of 4.87 (13) and 0.64 (12)° and 4.04 (12) and 3.67 (12)° with the two terminal phenyl rings in the two independent molecules. In the crystal, molecules are connected via weak intermolecular C—H⋯O hydrogen bonds forming supramolecular chains along the c axis.
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