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1
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33751391634
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Yoon, D. I.; Berg-Brennan, C. A.; Lu, H.; Hupp, J. T. Inorg. Chem. 1992, 31, 3192.
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Inorg. Chem.
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Yoon, D.I.1
Berg-Brennan, C.A.2
Lu, H.3
Hupp, J.T.4
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2
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0001166962
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Berg-Brennan, C. A.; Yoon, D. I.; Hupp, J. T. J Am. Chem. Soc. 1993, 115, 2048.
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J Am. Chem. Soc.
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Berg-Brennan, C.A.1
Yoon, D.I.2
Hupp, J.T.3
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3
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2742555914
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note
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obs, vs. 1/T parameters to avoid confusion with the asterisk notation for electronic excited states (cf. Scheme 1).
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4
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2742610942
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note
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Six of the eight solvents yield plots that clearly display two activation regimes and a well-defined transition temperature (cf. Figure 1). Methyl benzoate and dichloropropane, however, yield plots that are nonlinear, but less obviously dual component - at least over the accessible temperature ranges. Nevertheless, for completeness, we have assumed that the observed curved Arrhenius plots are dual-component plots and have reported best fit parameters (Table 1). Clearly, however, the parameters should be regarded as much less certain than those reported for other solvents
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5
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2742527309
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Cross-coupling to protons g apparently also occurs, but phase-matching problems prevented us from establishing the interaction with certainty
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Cross-coupling to protons g apparently also occurs, but phase-matching problems prevented us from establishing the interaction with certainty.
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6
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84891732805
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(a) Smithrud, D. B.; Sanford, I C.; Ferguson, S. B.; Carcanague, D. R.; Evanseck, J. D.; Houk, K. N.; Diederich, F. Pure Appl. Chem. 1990, 62, 2227.
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Pure Appl. Chem.
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Smithrud, D.B.1
Sanford, I.C.2
Ferguson, S.B.3
Carcanague, D.R.4
Evanseck, J.D.5
Houk, K.N.6
Diederich, F.7
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7
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0002024340
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(b) Diederich, F.; Smithrud, D. B., Sanford, E. M.; Wyman, T. B.; Ferguson, S. B.; Carcanague, D R.; Chao, I.; Houk, K. N. Acta Chem. Scand 1992, 46, 205.
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Acta Chem. Scand
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Diederich, F.1
Smithrud, D.B.2
Sanford, E.M.3
Wyman, T.B.4
Ferguson, S.B.5
Carcanague, D.R.6
Chao, I.7
Houk, K.N.8
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8
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0001386929
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(c)Smithrud, D. B.; Wyman, T. B.; Diederich, F. J. Am. Chem. Soc. 1991, 113, 5420.
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Smithrud, D.B.1
Wyman, T.B.2
Diederich, F.3
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10
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2742571151
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tr were the same for all solvents.) Krug et al. ( Nature 1976, 267, 566; J. Phys. Chem. 1976, 80, 2235, 2341) have pointed out that apparent enthalpy/entropy correlations can readily arise from a correlated propagation of experimental errors. They argue that free energy vs enthalpy correlations, at an average experimental temperature, offer a means for assessing the chemical validity of enthalpy/ entropy correlations (since experimental errors for the former should be statistically uncorrelated). The data in Table 2 fail this test (r = 0.28), indicating that the correlations are likely spurious.
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(1976)
Nature
, vol.267
, pp. 566
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11
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84904538956
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tr were the same for all solvents.) Krug et al. ( Nature 1976, 267, 566; J. Phys. Chem. 1976, 80, 2235, 2341) have pointed out that apparent enthalpy/entropy correlations can readily arise from a correlated propagation of experimental errors. They argue that free energy vs enthalpy correlations, at an average experimental temperature, offer a means for assessing the chemical validity of enthalpy/ entropy correlations (since experimental errors for the former should be statistically uncorrelated). The data in Table 2 fail this test (r = 0.28), indicating that the correlations are likely spurious.
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(1976)
J. Phys. Chem.
, vol.80
, pp. 2235
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12
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2742552579
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note
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A reviewer has pointed out that if the Coulombic exlanation is correct, the excited-state folding equilibrium could likely be altered by derivatizing the bipyridyl ligand so as to yield a ligand-localized π - π*state, in place of the charge transfer state, as the lowest-lying excited state.
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