STABILITIES OF SOME 2-(PARA-SUBSTITUTED-PHENYL)4,4,5,5-TETRAMETHYL-1,3-DIOXOLANES RELATIVE TO THEIR CONJUGATE DIOXOLENIUM IONS, RADICALS AND CARBANIONS AS DETERMINED BY THERMODYNAMICS FOR HYDRIDE AND ELECTRON-TRANSFER IN SOLUTION
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作者:
ARNETT, EM
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机构:Department of Chemistry, Duke University, Durham, North Carolina, 27708-0346
ARNETT, EM
FLOWERS, RA
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机构:Department of Chemistry, Duke University, Durham, North Carolina, 27708-0346
FLOWERS, RA
MEEKHOF, AE
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机构:Department of Chemistry, Duke University, Durham, North Carolina, 27708-0346
MEEKHOF, AE
POURJAVADI, A
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机构:Department of Chemistry, Duke University, Durham, North Carolina, 27708-0346
POURJAVADI, A
WALEK, SA
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机构:Department of Chemistry, Duke University, Durham, North Carolina, 27708-0346
WALEK, SA
机构:
[1] Department of Chemistry, Duke University, Durham, North Carolina, 27708-0346
A calorimetric method is described for the determination of the hydride affinities, Delta H-H-(R(+)) of seven dioxolenium ions from the title compounds and also tropylium, trityl and 9-phenyl xanthylium cations by hydride transfer to the carbocations from BH3CN-. Cyclic voltammetric methods yield free energies for reduction of the cations to the conjugate radicals and to the carbanions. The Delta H-H-(R(+)) values correlate well with the first reduction potentials of the cations.