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- W1937843574 abstract "Rate constants for solvolysis involving the displacement of chloride from the carbonyl carbon of diphenylacetyl chloride ((C6H5)2CHCOCl, 1) in ethanol, methanol, aqueous binary mixtures incorporating ethanol, methanol, acetone, 2,2,2-trifluoroethanol (TFE), and 1,1,1,3,3,3-hexafluoro-2-propanol, and binary mixtures of TFE with ethanol are reported. The kinetic data obtained from the reactions in 34 different solvents and solvent mixtures gave an extended Grunwald–Winstein correlation with the l value of 0.76 ± 0.06, the m value of 0.34 ± 0.04, and the correlation coefficient (R2) of 0.932. The appreciable values for both l and m suggest that the bond formation is ahead of the bond breaking with an SN2 mechanism, and the l/m ratio of 2.2 is also in the range of values found for SN2 reaction. This interpretation is further supported by the activation parameters, i.e., relatively small positive ΔH≠ (7.7–16.3 kcal/mol) values and large negative ΔS≠ (−24.6 to −53.4 cal/mol/K) values, and the solvent kinetic isotope effect (1.62)." @default.
- W1937843574 created "2016-06-24" @default.
- W1937843574 creator A5054062795 @default.
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- W1937843574 date "2015-08-28" @default.
- W1937843574 modified "2023-10-16" @default.
- W1937843574 title "Correlation of Rates of Solvolysis of Diphenylacetyl Chloride Using Extended Grunwald-Winstein Equation" @default.
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- W1937843574 doi "https://doi.org/10.1002/bkcs.10465" @default.
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