[1] [1] Kebarle, et al. Competitive solvation of the hydrogen ion by water and methanol molecules studied in the gas phase ［J］. J. Am. Chem. Soc., 1967, 89(23): 5753757.

[2] [2] Stace A J, et al. Preferential solvation of hydrogen ions in mixed clusters of water, methanol, and ethanol ［J］. J. Am. Chem. Soc., 1982, 104(20): 5314318.

[3] [3] Herron W J, Coolbaugh M T, et al. Observation of magic numbers for (ROH)n H3 O + heteroclusters (R=CH3 , CH3 CH2 , (CH3)2 CH, and CH3 CH2 CH2): Implications for cluster ion structure ［J］. J. Am Chem. Soc., 1992, 114(10): 3684-3689.

[5] [5] Samy El-Shall M, Christopher M. Reactions and thermochemistry of protonated methanol clusters produced by electron impact ionization ［J］. J. Phys. Chem., 1992, 96: 2045-2051.