PMR spectra of monosubstituted cobalticinium salts
Journal Article
·
· Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States)
OSTI ID:6227374
The authors carried out a comparative study of the homo- and heteroannular effect of primary, secondary, and tertiary alkyl, benzyl, and phenyl substituents on the PMR chemical shifts or the protons of cyclopentadienyl ligands in monosubstituted cobalticinium salts. The heteroannular effect of alkyl groups in the PMR spectra of alkylcobalticinium salts increases with their increasing hyperconjugative effect. As a consequence of the complex nature of the electronic effects of the alkyl substituents, the chemical shifts for the ..cap alpha..- and ..beta..-protons of the substituted Cp ligand in the PMR spectra of alkylcobalticinium salts approach one another until they finally coalesce in the series Me, Et, i-Pr, t-Bu.
- Research Organization:
- A.N. Nesmeyanov Institute of Heteroorganic Compounds, Moscow, USSR
- OSTI ID:
- 6227374
- Journal Information:
- Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States), Journal Name: Bull. Acad. Sci. USSR, Div. Chem. Sci. (Engl. Transl.); (United States) Vol. 35:7; ISSN BACCA
- Country of Publication:
- United States
- Language:
- English
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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
ALKENES
BARYONS
BORATES
BORON COMPOUNDS
CARBON 13
CARBON ISOTOPES
CHEMICAL SHIFT
COBALT COMPLEXES
COMPLEXES
CYCLOALKENES
CYCLOPENTADIENE
DIENES
DOUBLE RESONANCE METHODS
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
ELECTRONS
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
FERROCENE
HADRONS
HYDROCARBONS
HYDROGEN 1
HYDROGEN ISOTOPES
IRON COMPLEXES
ISOTOPES
LEPTONS
LIGANDS
LIGHT NUCLEI
MAGNETIC RESONANCE
NMR SPECTRA
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYENES
PROTONS
RESONANCE
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES
400201* -- Chemical & Physicochemical Properties
640302 -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ALKENES
BARYONS
BORATES
BORON COMPOUNDS
CARBON 13
CARBON ISOTOPES
CHEMICAL SHIFT
COBALT COMPLEXES
COMPLEXES
CYCLOALKENES
CYCLOPENTADIENE
DIENES
DOUBLE RESONANCE METHODS
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
ELECTRONS
ELEMENTARY PARTICLES
EVEN-ODD NUCLEI
FERMIONS
FERROCENE
HADRONS
HYDROCARBONS
HYDROGEN 1
HYDROGEN ISOTOPES
IRON COMPLEXES
ISOTOPES
LEPTONS
LIGANDS
LIGHT NUCLEI
MAGNETIC RESONANCE
NMR SPECTRA
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYENES
PROTONS
RESONANCE
SPECTRA
STABLE ISOTOPES
TRANSITION ELEMENT COMPLEXES