Structure and color of protonated benzimidazolyl formazans

Journal Article · Sun Dec 01 04:00:00 EST 1985 · Chem. Heterocycl. Compd. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00515073· OSTI ID:6334919

Yalandina, A I; Kovalev, E G; Lipunova, G N; Bednyagina, N P; Egorova, L G; Popova, L L

Benzimidazolyl formazans were titrated spectrophotometrically and their base constants were determined. On the basis of quantum mechanical calculations of electron spectra a hypothesis concerning the chelate structure of the unsymmetrical benzimidazolyl formazans is proposed.

• Research Organization: S.M. Kirov Ural Polytechnic Institute, Sverdlovsk, USSR
• OSTI ID: 6334919
• Journal Information: Chem. Heterocycl. Compd. (Engl. Transl.); (United States), Journal Name: Chem. Heterocycl. Compd. (Engl. Transl.); (United States) Vol. 21:6; ISSN CHCCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
AZOLES
BENZIMIDAZOLES
BINDING ENERGY
CHARGE DISTRIBUTION
CHELATES
CHEMICAL REACTIONS
CHEMICAL SHIFT
COLOR
COMPLEXES
CONFIGURATION INTERACTION
ELECTRON SPECTRA
ELECTRON TRANSFER
ELECTRONIC STRUCTURE
ELECTRONS
ELEMENTARY PARTICLES
ENERGY
ENERGY-LEVEL TRANSITIONS
FERMIONS
HALOGENATED ALIPHATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDROGEN TRANSFER
IMIDAZOLES
IODINATED ALIPHATIC HYDROCARBONS
ISOMERIZATION
ISOMERS
LEPTONS
MECHANICS
MOLECULAR STRUCTURE
NMR SPECTRA
OPTICAL PROPERTIES
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC IODINE COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
QUANTUM MECHANICS
SPECTRA
SPECTRAL SHIFT
SPECTROPHOTOMETRY
STRUCTURAL CHEMICAL ANALYSIS
TITRATION
VALENCE