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Solvent effect on the hammett reaction constant for the electroreduction of substituted benzophenones
Author(s) -
Jaworski Jan S.,
Malik Marcin,
Kalinowski Marek K.
Publication year - 1992
Publication title -
journal of physical organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.325
H-Index - 66
eISSN - 1099-1395
pISSN - 0894-3230
DOI - 10.1002/poc.610050906
Subject(s) - chemistry , propylene carbonate , acetonitrile , dimethylacetamide , solvent , dimethylformamide , hammett equation , solvent effects , electrochemistry , acetone , lewis acids and bases , reaction rate constant , photochemistry , inorganic chemistry , organic chemistry , medicinal chemistry , catalysis , kinetics , physics , electrode , quantum mechanics
Solvent effects on the Hammett ρ value for the cathodic reduction of substituted benzophenones were determined. The electrochemistry of a series of 11 compounds was studied in acetonitrile, acetone, dimethyl sulphoxide, propylene carbonate, N , N ‐dimethylformamide, N , N ‐dimethylacetamide, N , N ‐diethylformamide and hexamethylphosphoric triamide. The ρ values for the reversible one‐electron transfer are described by the Lewis acid‐base model ρ = − 0.006 AN + 0.003 DN + 0.391, where AN = solvent acceptor number and DN = solvent donor number.