Hammett-type relationship for the cleavage of radical anions of aromatic chlorides and bromides |
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| Authors: | M. Arun Prasad |
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| Affiliation: | Department of Chemistry, Indian Institute of Technology, Madras 600036, India |
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| Abstract: | A Hammett-type correlation pertaining to the cleavage of radical anions of aromatic halides has been formulated. The expression has been verified using the reaction series of aromatic chlorides and bromides. The correlation reveals the sensitive nature of the carbon-chlorine bond to the polar effects of the substituents in comparison to the carbon-bromine bond. The cleavage rate constants of radical anions of some aromatic chlorides and bromides have been deduced using the correlation. The standard potentials for formation of radical anions of aromatic chlorides and bromides have been estimated based on the correlation. |
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| Keywords: | Hammett equation Aromatic halides Reductive cleavage Radical anion Reaction constant Cleavage rate constant Standard potential |
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