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6-Bromo-4-hydrazinyl-idene-1-methyl-3H-2?,1-benzothia-zine-2,2-dione.

ABSTRACT: In the title mol-ecule, C(9)H(10)BrN(3)O(2)S, the thia-zine ring has an envelope conformation with the S atom at the flap. The geometry around the S atom is distorted tetra-hedral. In the crystal, inversion dimers linked by pairs of N-H?N hydrogen bonds occur, generating R(2) (2)(6) ring motifs. N-H?O hydrogen bonds and C-H?O inter-actions connect the dimers, forming a three-dimentional network structure.

SUBMITTER: Shafiq M

PROVIDER: S-EPMC3213521 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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6-Bromo-4-hydrazinyl-idene-1-methyl-3H-2λ,1-benzothia-zine-2,2-dione.

Shafiq Muhammad M Khan Islam Ullah IU Zia-Ur-Rehman Muhammad M Arshad Muhammad Nadeem MN Asiri Abdullah M AM

Acta crystallographica. Section E, Structure reports online 20110723 Pt 8

In the title mol-ecule, C(9)H(10)BrN(3)O(2)S, the thia-zine ring has an envelope conformation with the S atom at the flap. The geometry around the S atom is distorted tetra-hedral. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds occur, generating R(2) (2)(6) ring motifs. N-H⋯O hydrogen bonds and C-H⋯O inter-actions connect the dimers, forming a three-dimentional network structure. ...[more]

PMID: 22091100

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6-Bromo-1-methyl-4-[2-(4-methyl-benzyl-idene)hydrazinyl-idene]-3H-2?,1-benzothia-zine-2,2-dione.

Project description:In the title compound, C(17)H(16)BrN(3)O(2)S, the two fused rings are twisted by a dihedral angle of 6.61?(15)°. The thia-zine ring adopts a sofa conformation. The toluene ring is oriented at dihedral angles of 15.5?(2) and 20.6?(2)° with respect to the bromo-benzene and thia-zine rings, respectively. The benzyl-idene system is approximately planar [r.m.s. deviation = 0.0388?Å]. In the cyrstal, weak inter-molecular C-H?O hydrogen bonds connects the mol-ecules into a chain along the b axis.

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6-Bromo-4-[2-(4-fluoro-benzyl-idene)hydrazin-1-yl-idene]-1-methyl-3,4-dihydro-1H-2?(6),1-benzothia-zine-2,2-dione.

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(3S,4Z)-3-Chloro-1-methyl-4-[(2E)-(3-methyl-benzyl-idene)hydrazinyl-idene]-3,4-dihydro-1H-2,1-benzothia-zine 2,2-dioxide.

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Project description:In the title compound, C(24)H(18)ClN(3)O(2)S, the dihedral angle between the benzene ring and the anthracene ring system is 41.10?(8)°. The thia-zine ring has a half-chair conformation and the Cl atom is in an axial orientation. In the crystal, mol-ecules are linked by C-H?O inter-actions, generating C(8) chains along [100]. A C-H?N short contact occurs in the mol-ecule, generating an S(6) ring.

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3-Chloro-4-[2-(4-chloro-benzyl-idene)hydrazinyl-idene]-1-methyl-3,4-dihydro-1H-2?(6),1-benzothia-zine-2,2-dione.

Project description:In the title compound, C16H13Cl2N3O2S, the dihedral angle between the aromatic rings is 6.62?(2)° and the C=N-N=C torsion angle is 176.2?(4)°. The thia-zine ring shows an envelope conformation, with the S atom displaced by 0.633?(6)?Å from the mean plane of the other five atoms (r.m.s. deviation = 0.037?Å). The Cl atom is an an axial conformation and is displaced by 2.015?(6)?Å from the thia-zine ring plane. In the crystal, mol-ecules are linked by C-H?O inter-actions, generating a three-dimensional network. Very weak aromatic ?-? stacking inter-actions [centroid-centroid separations = 3.928?(2)?Å] are also observed.

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