Related Experiment Video
Updated: May 11, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
(Z)-3-(2,4-Dichloro-benz-yl)-1,5-benzo-thia-zepin-4(5H)-one
S Murugavel1, N Manikandan, R Selvakumar
1Department of Physics, Thanthai Periyar Government Institute of Technology, Vellore 632 002, India.
Abstract:
In the title compound, C16H11Cl2NOS, the seven-membered thia-zepine ring adopts a distorted twist-boat conformation. The dihedral angle between the mean plane of the benzothia-zepine ring system and the benzene ring is 78.6 (1)°. The mol-ecular conformation is stabilized by a weak intra-molecular C-H⋯Cl hydrogen bond, which generates an S(5) ring motif. In the crystal, pairs of N-H⋯O hydrogen bonds link inversion-related mol-ecules into dimers, generating R 2 (2)(8) ring motifs. The crystal packing also features alternating π-π inter-actions between benzothia-zepine benzene rings [inter-centroid distance = 3.740 (3) Å] and dichloro-benzene rings [inter-centroid distance = 3.882 (3) Å] to consolidate a three-dimensional architecture.
Related Concept Videos
Reactions at the Benzylic Position: Halogenation
Nomenclature of Aromatic Compounds with Multiple Substituents
For disubstituted benzene derivatives, with two groups attached to the benzene ring, three constitutional isomers are possible. For example, consider dimethyl benzene, often called xylene, where the second methyl group can be substituted at the second, third, or fourth carbon. The relative position of the substituents is represented by prefixes ortho, meta, or...
Electrophilic Aromatic Substitution: Chlorination and Bromination of Benzene
Structure of Benzene: Kekulé Model
He proposed that benzene has a cyclic structure of six carbon atoms attached to one hydrogen atom each, with three alternating pi bonds.
Reactions at the Benzylic Position: Oxidation and Reduction
Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions
![Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F60786.jpg&w=3840&q=50)
