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This is likely to be quite variable and not accurately represented by a macroscopic value (Warshel, A. J. Biol. Chem. 1998, 273, 27035-27038). Nonetheless, macroscopic dielectrics for active sites have been variously estimated to range from 4 to 40 with 10 taken as an average value (Warshel, A. Annu. Rev. Biophys. Biophys. Chem. 1991, 20, 267-298). Jordan has experimentally determined an ∈ = 13-15 in a very recent example (Jordan, F.; Li, H.; Brown, A. Biochemists 1999, 38, 6369-6373).
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0025891413
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This is likely to be quite variable and not accurately represented by a macroscopic value (Warshel, A. J. Biol. Chem. 1998, 273, 27035-27038). Nonetheless, macroscopic dielectrics for active sites have been variously estimated to range from 4 to 40 with 10 taken as an average value (Warshel, A. Annu. Rev. Biophys. Biophys. Chem. 1991, 20, 267-298). Jordan has experimentally determined an ∈ = 13-15 in a very recent example (Jordan, F.; Li, H.; Brown, A. Biochemists 1999, 38, 6369-6373).
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This is likely to be quite variable and not accurately represented by a macroscopic value (Warshel, A. J. Biol. Chem. 1998, 273, 27035-27038). Nonetheless, macroscopic dielectrics for active sites have been variously estimated to range from 4 to 40 with 10 taken as an average value (Warshel, A. Annu. Rev. Biophys. Biophys. Chem. 1991, 20, 267-298). Jordan has experimentally determined an ∈ = 13-15 in a very recent example (Jordan, F.; Li, H.; Brown, A. Biochemists 1999, 38, 6369-6373).
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0343635131
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The microscopic reverse of this process would be protodemetalation. For the case of protodemercurations, β-secondary kinetic isotope effects have been observed to be very low or nonexistent, in contrast to the CS-catalyzed reaction (Bencivengo, D. J.; Brownawell, M. L.; Li, M.-Y.; San Filippo, Jr., J. J. Am. Chem. Soc. 1984, 106, 3703-3704).
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