Related Experiment Video
Updated: May 14, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
1-Phenyl-2-[4-(trifluoro-meth-yl)phen-yl]-1H-benzimidazole
K Jayamoorthy1, T Mohandas, P Sakthivel
1Annamalai University, Chidambaram, Tamilnadu, India.
Abstract:
In the title mol-ecule, C(20)H(13)F(3)N(2), the benzimidazole unit is close to being planar [maximum deviation = 0.012 (1) Å] and forms dihedral angles of 31.43 (7) and 61.45 (9)° with the 4-(trifluoromethyl)phenyl and 1-phenyl rings, respectively; the dihedral angle between these rings is 60.94 (10)°. In the crystal, C-H⋯F hydrogen bonds link the mol-ecules into chains along the c-axis direction. The CF(3) group is rotationally disordered with an occupancy ratio of 0.557 (8):0.443 (8) for the F atoms.
Related Concept Videos
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: Fluorination and Iodination of Benzene
Nomenclature of Aromatic Compounds with a Single Substituent
NMR Spectroscopy of Benzene Derivatives
Benzene to Phenol via Cumene: Hock Process
Benzene to 1,4-Cyclohexadiene: Birch Reduction Mechanism

