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2-[(4-Bromo-phen-yl)sulfan-yl]-2-meth-oxy-1-phenyl-ethan-1-one: crystal structure, Hirshfeld surface analysis and computational chemistry.

ABSTRACT: The title compound, C₁₅H₁₃BrO₂S, comprises three different substituents bound to a central (and chiral) methine-C atom, i.e. (4-bromo-phen-yl)sulfanyl, benzaldehyde and meth-oxy residues: crystal symmetry generates a racemic mixture. A twist in the mol-ecule is evident about the methine-C-C(carbon-yl) bond as evidenced by the O-C-C-O torsion angle of -20.8 (7)°. The dihedral angle between the bromo-benzene and phenyl rings is 43.2 (2)°, with the former disposed to lie over the oxygen atoms. The most prominent feature of the packing is the formation of helical supra-molecular chains as a result of methyl- and methine-C-H⋯O(carbon-yl) inter-actions. The chains assemble into a three-dimensional architecture without directional inter-actions between them. The nature of the weak points of contacts has been probed by a combination of Hirshfeld surface analysis, non-covalent inter-action plots and inter-action energy calculations. These point to the importance of weaker H⋯H and C-H⋯C inter-actions in the consolidation of the structure.

SUBMITTER: Caracelli I

PROVIDER: S-EPMC6658945 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-[(4-Chloro-phen-yl)sulfan-yl]-2-meth-oxy-1-phenyl-ethan-1-one: crystal structure and Hirshfeld surface analysis.

Project description:The title compound, C15H13ClO2S, comprises (4-chloro-phen-yl)sulfanyl, benzaldehyde and meth-oxy residues linked at a chiral methine-C atom (the crystal is racemic). A twist in the methine-C-C(carbon-yl) bond [O-C-C-O torsion angle = 19.3 (7)°] leads to a dihedral angle of 22.2 (5)° between the benzaldehyde and methine+meth-oxy residues. The chloro-benzene ring is folded to lie over the O atoms, with the dihedral angle between the benzene rings being 42.9 (2)°. In the crystal, the carbonyl-O atom accepts two C-H⋯O inter-actions with methyl- and methine-C-H atoms being the donors. The result is an helical supra-molecular chain aligned along the c axis; chains pack with no directional inter-actions between them. An analysis of the Hirshfeld surface points to the important contributions of weak H⋯H and C⋯C contacts to the mol-ecular packing.

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Crystal structure of 2-meth-oxy-2-[(4-methyl-phen-yl)sulfan-yl]-1-phenyl-ethan-1-one.

Project description:In the title β-thio-carbonyl compound, C16H16O2S, the carbonyl and meth-oxy O atoms are approximately coplanar [O-C-C-O torsion angle = -18.2 (5)°] and syn to each other, and the tolyl ring is orientated to lie over them. The dihedral angle between the planes of the two rings is 44.03 (16)°. In the crystal, supra-molecular chains are formed along the c axis mediated by C-H⋯O inter-actions involving methine and methyl H atoms as donors, with the carbonyl O atom accepting both bonds; these pack with no specific inter-molecular inter-actions between them.

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Crystal structure of trimeth-yl({tris-[(phenyl-sulfan-yl)meth-yl]sil-yl}meth-oxy)silane and Hirshfeld surface analysis of 3-bromo-2,2-bis-(bromo-meth-yl)propan-1-ol.

Project description:Trimeth-yl({tris-[(phenyl-sulfan-yl)meth-yl]sil-yl}meth-oxy)silane (3), C26H32OS3Si, is a new ligand for transition-metal coordination chemistry derived from 3-bromo-2,2-bis-(bromo-meth-yl)propan-1-ol (1), C5H9Br3O, through silylation and following exchange of bromine groups with NaSPh. Silylated thio-ether ligand 3 crystallizes in the centrosymmetric space group C2/c. Bromo-methyl-alcohol 1 crystallizes in the space group P in the triclinic crystal system with four mol-ecules in the asymmetric unit. Analysis of the Hirshfeld surface shows structure-defining inter-actions for bromo-methyl-alcohol 1, resulting in inter-molecular hydrogen bonds between the hydroxyl groups along the a-axis direction.

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Crystal structure of 2-meth-oxy-2-[(4-meth-oxy-phen-yl)sulfan-yl]-1-phenyl-ethanone.

Project description:In the title β-thio-carbonyl compound, C16H16O3S, the adjacent meth-oxy and carbonyl O atoms are synperiplanar [the O-C-C-O torsion angle is 19.8 (4)°] and are separated by 2.582 (3) Å. The dihedral angle between the rings is 40.11 (16)°, and the meth-oxy group is coplanar with the benzene ring to which it is connected [the C-C-O-C torsion angle is 179.1 (3)°]. The most notable feature of the crystal packing is the formation of methine and methyl C-H⋯O(carbon-yl) inter-actions that lead to a supra-molecular chain with a zigzag topology along the c axis. Chains pack with no specific inter-molecular inter-actions between them.

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Project description:The title Schiff base compound, C22H19NO2S, crystallized with two independent mol-ecules (A and B) in the asymmetric unit. Both mol-ecules have an E conformation about the C=N bond. The two mol-ecules differ in the orientation of the aromatic rings with respect to each other. The outer 4-meth-oxy-benzene ring is inclined to the central benzene ring and the outer 4-acetyl-benzene ring by 1.80?(19) and 63.73?(19)°, respectively, in mol-ecule A, and by 6.72?(18) and 68.53?(19)°, respectively, in mol-ecule B. The two outer benzene rings are inclined to one another by 63.77?(18) and 63.19?(18)° in mol-ecules A and B, respectively. In the crystal, the individual mol-ecules stack in columns along [010], and are linked by a number of C-H?? inter-actions, forming slabs lying parallel to (001).

| S-EPMC4384611 | biostudies-literature

Methyl N-({[2-(2-meth-oxy-acetamido)-4-(phenyl-sulfan-yl)phen-yl]amino}[(meth-oxy-carbonyl)imino]methyl)carbamate.

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| S-EPMC3297308 | biostudies-literature

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Project description:The title compound, C(21)H(20)O(2)S(2), forms a propeller-shaped structure with the tetra-hedral C atom as the central hub and meth-oxy-benzene and phenyl residues as radiating blades. Short C-H?? contacts are observed.

| S-EPMC3297852 | biostudies-other

<i>N</i>-[2-(3,4-Di-meth-oxy-phen-yl)-2-(phenyl-sulfan-yl)eth-yl]-2-(2-fluoro-phen-yl)acetamide.

Project description:The title compound, C24H24FNO3S, is an inter-mediate in the synthesis of fluorine containing iso-quinoline alkaloids, which crystallizes in the triclinic space group P with one mol-ecule in the asymmetric unit. The structure presents a racemic mixture of enanti-omers. The C-S-C-C torsion angle between the benzene ring system and the sulfonyl benzene ring is -178.5 (1)°. In the crystal, N-H⋯O hydrogen bonds between neighbouring mol-ecules form chains of mol-ecules along the a-axis direction.

| S-EPMC9462268 | biostudies-literature

Synthesis, mol-ecular structure and Hirshfeld surface analysis of (4-meth-oxy-phen-yl)[2-(methyl-sulfan-yl)thio-phen-3-yl]methanone.

Project description:The title compound, C13H12O2S2, crystallizes in the triclinic space group P . The mol-ecular structure is substanti-ally twisted, with a dihedral angle of 43.70?(2)° between the 2-(methyl-sulfan-yl)thio-phene and 4-meth-oxy-phenyl rings. In the crystal, mol-ecules are linked through C-H?O inter-actions and form a bifurcated layer stacking along the b-axis direction and enclosing R 2 2(10) ring motifs. The phenyl rings are involved in ?-? inter-actions with a centroid-centroid separation of 3.760?(2)?Å. The Hirshfeld surfaces were studied and the contributions of the various inter-molecular inter-actions were qu-anti-fied.

| S-EPMC6281100 | biostudies-literature

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