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5-(Adamantan-1-yl)-3-[(4-fluoro-anilino)meth-yl]-2,3-di-hydro-1,3,4-oxa-diazole-2-thione.

ABSTRACT: In the title compound, C19H22FN3OS, the dihedral angle between the inclined oxa-diazole and benzene rings is 52.7?(3)°. In the crystal, helical supra-molecular chains along [100] are sustained by N-H?S hydrogen bonds supported by methyl-ene-benzene C-H?? inter-actions. The crystal studied was an inversion twin with the fractional contribution of the minor component being 0.33?(14).

SUBMITTER: Al-Tamimi AM

PROVIDER: S-EPMC3648262 | biostudies-literature | 2013 May

REPOSITORIES: biostudies-literature

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5-(Adamantan-1-yl)-3-[(4-fluoro-anilino)meth-yl]-2,3-di-hydro-1,3,4-oxa-diazole-2-thione.

Al-Tamimi Abdul-Malek S AM Alafeefy Ahmed M AM El-Emam Ali A AA Ng Seik Weng SW Tiekink Edward R T ER

Acta crystallographica. Section E, Structure reports online 20130413 Pt 5

In the title compound, C19H22FN3OS, the dihedral angle between the inclined oxa-diazole and benzene rings is 52.7 (3)°. In the crystal, helical supra-molecular chains along [100] are sustained by N-H⋯S hydrogen bonds supported by methyl-ene-benzene C-H⋯π inter-actions. The crystal studied was an inversion twin with the fractional contribution of the minor component being 0.33 (14). ...[more]

PMID: 23723882

Similar Datasets

5-(Adamantan-1-yl)-3-anilinomethyl-2,3-di-hydro-1,3,4-oxa-diazole-2-thione.

Project description:In the title compound, C19H23N3OS, the oxa-diazole and benzene rings are inclined at a dihedral angle of 50.30?(11)°, with the major twist between them occurring at the ring-methyl-ene N-C bond [N-N-C-N torsion angle = -101.2?(2)°]. In the crystal, helical supra-molecular chains along [010] are sustained by N-H?S hydrogen bonds. These are linked into layers lying parallel to (-101) by methyl-ene-phenyl C-H?? inter-actions.

| S-EPMC3648261 | biostudies-literature

Crystal structures and Hirshfeld surface analysis of 2-(adamantan-1-yl)-5-(4-fluoro-phen-yl)-1,3,4-oxa-diazole and 2-(adamantan-1-yl)-5-(4-chloro-phen-yl)-1,3,4-oxa-diazole.

Project description:The crystal structures of the title adamantane-oxa-diazole hybrid compounds, C18H19FN2O (I) and C18H19ClN2O (II), are built up from an adamantane unit and a halogenophenyl ring, [X = F (I), Cl (II)], in position 5 on the central 1,3,4-oxa-diazole unit. The mol-ecular structures are very similar, only the relative orientation of the halogenophenyl ring in comparison with the central five-membered ring differs slightly. In the crystals of both compounds, mol-ecules are linked by pairs of C-H⋯N hydrogen bonds, forming inversion dimers with R 2 2(12) ring motifs. In (I) the dimers are connected by C-H⋯F inter-actions, forming slabs lying parallel to the bc plane. In (II), the dimers are linked by C-H⋯π and offset π-π inter-actions [inter-planar distance = 3.4039 (9) Å], forming layers parallel to (10).

| S-EPMC6505599 | biostudies-literature

Crystal structure of 3-[(4-benzyl-piperazin-1-yl)meth-yl]-5-(thio-phen-2-yl)-2,3-di-hydro-1,3,4-oxa-diazole-2-thione.

Project description:The title 1,3,4-oxa-diazole-2-thione derivative, C18H20N4OS2, crystallized with two independent mol-ecules (A and B) in the asymmetric unit. The 2-thienyl rings in both mol-ecules are rotationally disordered over two orientations by approximately 180° about the single C-C bond that connects it to the oxa-diazole thione ring; the ratios of site occupancies for the major and minor components were fixed in the structure refinement at 0.8:0.2 and 0.9:0.1 in mol-ecules A and B, respectively. The 1,3,4-oxa-diazole-2-thione ring forms dihedral angles of 7.71 (16), 10.0 (11) and 77.50 (12)° (mol-ecule A), and 6.5 (3), 6.0 (9) and 55.30 (12)° (mol-ecule B) with the major and minor parts of the disordered thio-phene ring and the mean plane of the adjacent piperazine ring, respectively, resulting in approximately V-shaped conformations for the mol-ecules. The piperazine ring in both mol-ecules adopts a chair conformation. The terminal benzene ring is inclined towards the mean plane of the piperazine ring with N-C-C-C torsion angles of -58.2 (3) and -66.2 (3)° in mol-ecules A and B, respectively. In the crystal, no inter-molecular hydrogen bonds are observed. The crystal packing features short S⋯S contacts [3.4792 (9) Å] and π-π inter-actions [3.661 (3), 3.664 (11) and 3.5727 (10) Å], producing a three-dimensional network.

| S-EPMC4350721 | biostudies-literature

3-[(4-Phenyl-piperazin-1-yl)meth-yl]-5-(thio-phen-2-yl)-2,3-di-hydro-1,3,4-oxa-diazole-2-thione.

Project description:In the title compound, C17H18N4OS2, the 2-thienyl ring is disordered over two co-planar, opposite orientations in a 0.684?(2): 0.316 ratio. The 1,3,4-oxa-diazole ring is almost co-planar with the attached 2-thienyl ring [dihedral angles of 5.34?(19) and 4.8?(5)° for the major and minor components, respectively]. The relative disposition of the thione- and ring-S atoms is anti for the major orientation of the 2-thienyl residue. Overall, the shape of the mol-ecule approximates the letter V. In the crystal, a three-dimensional architecture is consolidated by a combination of weak C-H?S and C-H?? contacts.

| S-EPMC3647878 | biostudies-other

Crystal structure of 2-(adamantan-1-yl)-5-(4-bromo-phen-yl)-1,3,4-oxa-diazole.

Project description:In the title mol-ecule, C18H19BrN2O, the benzene ring is inclined to the oxa-diazole ring by 10.44?(8)°. In the crystal, C-H?? inter-actions link the mol-ecules in a head-to-tail fashion, forming chains extending along the c-axis direction. The chains are further connected by ?-? stacking inter-actions, with centroid-centroid distances of 3.6385?(7)?Å, forming layers parallel to the bc plane.

| S-EPMC4257436 | biostudies-literature

6-(Adamantan-1-yl)-3-(3-fluoro-phen-yl)-1,2,4-triazolo[3,4-b][1,3,4]thia-diazole.

Project description:The title mol-ecule, C(19)H(19)FN(4)S, displays C(s) mol-ecular symmetry, in which the crystallographic mirror plane bis-ects the adamantan-1-yl unit while the 3-fluoro-phenyl triazole ring is located on the mirror plane. The F atom of the 3-fluoro-phenyl ring is positionally disordered [occupancy ratio 0.9:0.1]. In the crystal, ?-? inter-actions between the triazole and phenyl rings occur [centroid-centroid distance = 3.5849?(7)?Å] and weak C-H?F inter-actions form a ribbon propagating in [010].

| S-EPMC3011398 | biostudies-literature

Crystal structure of 2-{[(naphthalen-1-yl)oxy]meth-yl}-5-(2,4,5-tri-fluoro-phen-yl)-1,3,4-oxa-diazole.

Project description:In the title compound C19H11F3N2O2, the oxa-diazole ring and the naphthalene ring system are approximately planar (r.m.s. deviations of 0.001 and 0.020 Å, respectively) and the oxa-diazole ring makes dihedral angles of 13.11 (1) and 7.59 (1)° with the naphthalene ring system and the tri-fluoro-phenyl ring, respectively. In the crystal, C-H⋯N hydrogen bonds link mol-ecules into chains along the a-axis direction, while C-H⋯F contacts form additional chains along the ac diagonal. These contacts generate sheets of mol-ecules approximately parallel to the (011) plane.

| S-EPMC4350736 | biostudies-literature

5-(4-Pyrid-yl)-1,3,4-thia-diazole-2(3H)-thione.

Project description:The title compound C(7)H(5)N(3)S(2), occurs as the thione tautomer in the solid state; the dihedral angle between the pyridine and thia-diazole ring planes is 2.08?(6)°. In the crystal, mol-ecules are linked by N-H?N hydrogen bonds, generating C(8) chains propagating in [010].

| S-EPMC3050180 | biostudies-literature

Crystal structure of 2-(4-fluoro-3-methyl-phen-yl)-5-{[(naphthalen-1-yl)-oxy]meth-yl}-1,3,4-oxa-diazole.

Project description:The title compound, C20H15FN2O2, adopts an almost planar conformation. The oxa-diazole ring makes dihedral angles of 13.90 (1) and 7.93 (1)° with the naphthalene ring system and benzene ring, respectively, while the naphthalene ring system and benzene ring are inclined to one another by 6.35 (1)°. In the crystal, adjacent mol-ecules are linked via C-H⋯N hydrogen bonds, forming chains propagating along [100]. There are also π-π inter-actions present [inter-centroid distances = 3.5754 (9) and 3.7191 (12) Å], linking the chains to form ribbons lying parallel to (011).

| S-EPMC4438827 | biostudies-literature

Crystal structure of 5-[2-(9<i>H</i>-carbazol-9-yl)eth-yl]-1,3,4-oxa-diazole-2(3<i>H</i>)-thione.

Project description:The title compound, C16H13N3OS, comprises an oxa-diazo-lethione ring bound to the N atom of an almost planar carbazole ring system (r.m.s. deviation = 0.0088?Å) through an ethyl-ene chain. The oxa-diazole ring is inclined to the the carbazole ring system by 40.71?(6)°. In the crystal, N-H?O, N-H?S, C-H?N and C-H?S hydrogen bonds combine with C-H??(ring) and ?-? contacts to stack the mol-ecules along the b-axis direction.

| S-EPMC5499292 | biostudies-literature

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