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1-(10H-Phenothia-zin-2-yl)ethanone.

ABSTRACT: In the title compound, C(14)H(11)NOS, the thia-zine ring adopts a slightly distorted boat conformation. The dihedral angle between the mean planes of the two benzene rings is 20.2?(9)°. An inter-molecular N-H?O hydrogen bond and a weak C-H?? inter-action occur in the crystal, creating a two-dimensional network parallel to the bc plane.

SUBMITTER: Jasinski JP

PROVIDER: S-EPMC3051484 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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1-(10H-Phenothia-zin-2-yl)ethanone.

Jasinski Jerry P JP Pek Albert E AE Nayak Prakash S PS Narayana B B Yathirajan H S HS

Acta crystallographica. Section E, Structure reports online 20110122 Pt 2

In the title compound, C(14)H(11)NOS, the thia-zine ring adopts a slightly distorted boat conformation. The dihedral angle between the mean planes of the two benzene rings is 20.2 (9)°. An inter-molecular N-H⋯O hydrogen bond and a weak C-H⋯π inter-action occur in the crystal, creating a two-dimensional network parallel to the bc plane. ...[more]

PMID: 21523098

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1-(10H-phenothia-zin-10-yl)ethanone.

Project description:In the title compound, C14H11NOS, the phenothia-zine unit has a butterfly conformation and the central six-membered ring has a boat form. The fold angle between the benzene rings is 46.39 (7)°, which is larger than found in similar compounds, probably as a result of steric repulsion between the phenothia-zine fragment and the acetyl group.

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1-(5,5-Dioxido-10H-phenothia-zin-10-yl)ethanone.

Project description:In the title compound, C(14)H(11)NO(3)S, the six-membered thia-zine ring fused to two benzene rings adopts a distorted boat conformation. The dihedral angle between the mean planes of the two benzene rings is 45.8 (1)°. The crystal packing is stabilized by weak inter-molecular C-H⋯O inter-actions.

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10-(Prop-2-yn-yl)-10H-phenothia-zine.

Project description:In the mol-ecule of the title compound, C(15)H(11)NS, the butterfly angle between the two planes defined by the two wings of the phenothia-zine unit is 33.5?(8)°. The dihedral angles between the two benzene rings and the propynyl group are 85?(4) and 63?(4)°.

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10-(Prop-1-yn-1-yl)-10H-phenothia-zine.

Project description:In the title compound, C(15)H(11)NS, the asymmetric unit comprises one half-mol-ecule; a mirror plane passes through the S atom, the ynamine fragment, the methyl C atom and one methyl H atom. The phenothia-zine moiety has a butterfly conformation and the central six-membered ring has a boat conformation. The dihedral angle between the benzene rings is 149.40 (4)°. The crystal structure is stabilized by van der Waals inter-actions.

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Project description:The title compound, 0.535C(28)H(21)NS.0.465C(28)H(21)NS, was synthesized by palladium-catalysed amination. The structure is composed of two isomeric mol-ecules, viz. 10-(2-methyl-4-phenyl-1H-inden-6-yl)-10H-phenothia-zine, and 10-(2-methyl-7-phenyl-1H-inden-5-yl)-10H-phenothia-zine, in the refined ratio 0.535 (12):0.465 (12). The isomers differ by the localization of the double bond in the cyclo-penta-diene ring. There are two sites in the structure that are occupied by the isomers. The respective isomers are occupationally disordered in each site, the refined proportions being 0.640 (6):0.360 (6) and 0.43 (1):0.57 (1). Moreover, each isomeric mol-ecule is chiral; due to the crystallographic centres of symmetry, the mol-ecules are also present in enanti-omeric pairs. The crystal structure is stabilized by weak π-π [C⋯C = 3.389 (2) Å] inter-actions.

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10H-Phenothia-zine 5-oxide.

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Project description:In the title compound, C(17)H(15)N(3)OS, the phenothia-zine ring system is slightly bent, with a dihedral angle of 13.68?(7)° between the benzene rings. The dihedral angle between the oxadiazole ring and the adjacent benzene ring is 7.72?(7)°. In the crystal, a ?-? inter-action with a centroid-centroid distance of 3.752?(2)?Å is observed between the benzene rings of neighbouring mol-ecules.

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10-Acetyl-10H-phenothia-zine 5-oxide.

Project description:In the title compound, C(14)H(11)NO(2)S, the sulfoxide O atom is disordered over two sites with occupancies of 0.886?(4) and 0.114?(4), reflecting a partial inversion of the lone pair at the tetra-hedral S-atom site. In the crystal, a supra-molecular arrangement arises from weak inter-molecular C-H?O hydrogen bonds. ?-? contacts between the aromatic rings of symmetry-related mol-ecules [centroid-centroid distances = 3.7547?(15) and 3.9577?(15)?Å] in parallel accumulation further stabilize the crystal structure.

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10-Benzyl-10H-phenothia-zine 9-oxide.

Project description:In the title compound, C(19)H(15)NOS, the butterfly angle between the mean planes defined by the S, N and phenyl C atoms of the two wings of the phenothiazine unit is 23.4?(1)°. In the crystal, a supra-molecular two-dimensional arrangement arises from weak inter-molecular C-H?O inter-actions.

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10-Hexyl-10H-phenothia-zine-3-carbaldehyde.

Project description:The asymmetric unit of the title compound, C(19)H(21)NOS, contains two mol-ecules, which form dimers via pairs of weak C-H⋯O hydrogen bonds.

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