Nature of the outer molecular orbitals involved in redox reactions of nitroxyl radicals at electrodes
It was shown by polarography, voltammetry, and EPR that nitroxyl radicals derived from piperidine and alkyl and aromatic amines can undergo reversible one-electron redox reactions at electrodes in aprotic solvents. A correlation could be established between electronic configuration and electrochemical properties of the nitroxyl radicals. It was shown that electron transfer from the electrode (reduction) in the redox reactions occurs to an electron-accepting, half-occupied ..pi..molecular orbital of the radicals, while electron transfer from the radicals to the electrode (oxidation) is accomplished from an electron-donating n-molecular orbital of the radicals. A correlation could be established between quantities ..delta..E/sub 1///sub 2/ = E /sup ox/ /sub 1///sub 2/ - E /sup red/ /sub 1///sub 2/ and the energies of n-..pi..* transitions in the radicals investigated.
- Research Organization:
- L.V. Pisarchevskii Inst. of Physical Chemistry
- OSTI ID:
- 7252029
- Journal Information:
- Sov. Electrochem. (Engl. Transl.); (United States), Vol. 20:11
- Country of Publication:
- United States
- Language:
- English
Similar Records
Molecular And Electronic Structures of Mononuclear Iron Complexes Using Strongly Electron-Donating Ligands And Their Oxidized Forms
Electron spin resonance studies on reduction process of nitroxyl spin radicals used in molecular imaging
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
NITROXYL RADICALS
ELECTRONIC STRUCTURE
HYPERFINE STRUCTURE
REDOX REACTIONS
BINDING ENERGY
ELECTROCHEMISTRY
ELECTRODES
ELECTRON SPIN RESONANCE
ELECTRONS
ORGANIC SOLVENTS
OXIDATION
POLAROGRAPHY
REDOX POTENTIAL
REDUCTION
VALENCE
VOLTAMETRY
CHEMICAL REACTIONS
CHEMISTRY
ELEMENTARY PARTICLES
ENERGY
FERMIONS
LEPTONS
MAGNETIC RESONANCE
RADICALS
RESONANCE
SOLVENTS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
400400 - Electrochemistry