Related Experiment Video
Updated: Jun 2, 2026

Scale-up Chemical Synthesis of Thermally-activated Delayed Fluorescence Emitters Based on the Dibenzothiophene-S,S-Dioxide Core
Published on: October 24, 2017
(Z)-5-Benzene-carbothioyl-1,11-dimethyl-6-phenyl-5H-dibenzo[d,f][1,3]diazepine
Abstract:
The seven-membered ring in the title compound, C(28)H(22)N(2)S, has a two-coordinate N atom as well as a three-coordinate N atom. The ring adopts a boat-shaped conformation with two C atoms of one methyl-phenyl ring as the stern and the three-coordinate N atom as the prow. The N,N-dimethyl-ethane-thio-amide fragment is nearly planar (r.m.s. deviation = 0.049 Å); the phenyl ring of the benzene-carbothioyl unit connected to the three-coordinate N atom is aligned at 83.72 (4)° with respect to the mean plane of this fragment. Weak inter-molecular C-H⋯S hydrogen bonding is present in the crystal structure.
Related Concept Videos
Five-Membered Heterocyclic Aromatic Compounds: Overview
Structure of Benzene: Molecular Orbital Model
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.
NMR Spectroscopy of Benzene Derivatives
Nomenclature of Aromatic Compounds with a Single Substituent
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...

