Related Experiment Video
Updated: Aug 12, 2026

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
Solid state linear dichroic infrared spectral analysis of benzimidazoles and their N(1)-protonated salts
1University of Sofia, Department of Chemistry, 1164 Sofia, Bulgaria. ahbi@chem.uni-sofia.bg
Abstract:
A stereo structural characterization of 2,5,6-thrimethylbenzimidazole (MBIZ) and 2-amino-benzimidaziole (2-NH(2)-BI) and their N(1) protonation salts was carried out using a polarized solid state linear dichroic infrared spectral (IR-LD) analysis in nematic liquid crystal suspension. All experimental predicted structures were compared with the theoretical ones, obtained by ab initio calculations. The C(s) to C(2v)(*) symmetry transformation as a result of protonation processes, with a view of its reflection on the infrared spectral characteristics was described.
More Related Videos
08:54Vibrational Spectra of a N719-Chromophore/Titania Interface from Empirical-Potential Molecular-Dynamics Simulation, Solvated by a Room Temperature Ionic Liquid
Published on: January 25, 2020
14:11Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
Published on: June 10, 2021
Related Concept Videos
¹H NMR: Complex Splitting
Splitting diagrams or splitting tree diagrams are routinely used to depict such complex couplings. While drawing splitting diagrams, the splitting with the larger coupling constant is usually applied first.
Spectroscopy of Carboxylic Acid Derivatives
In the...
Diazonium Group Substitution: –OH and –H
NMR Spectroscopy of Benzene Derivatives
¹H NMR Signal Integration: Overview
NMR Spectroscopy Of Amines