Rodriguez-Cruz, S E; Williams, E R (2001) Gas-phase reactions of hydrated alkaline earth metal ions, M2+ (H2O)n (M = Mg, Ca, Sr, Ba and n = 4-7), with benzene. J Am Soc Mass Spectrom 12:250-7
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Iavarone, A T; Jurchen, J C; Williams, E R (2001) Supercharged protein and peptide ions formed by electrospray ionization. Anal Chem 73:1455-60
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Strittmatter, E F; Wong, R L; Williams, E R (2000) Gas-Phase Basicity of (CH(3))(3)N-C(6)H(4)-COO Zwitterions: A New Class of Organic Super Bases. J Am Chem Soc 122:1247-8
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Strittmatter, E F; Williams, E R (2000) Structures of protonated arginine dimer and bradykinin investigated by density functional theory: further support for stable gas-phase salt bridges. J Phys Chem A 104:6069-76
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Strittmatter, E F; Wong, R L; Williams, E R (2000) Effects of Gas-Phase Basicity on the Proton Transfer between Organic Bases and Trifluoroacetic Acid in the Gas Phase: Energetics of Charge Solvation and Salt Bridges. J Phys Chem A 104:10271-9
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Jockusch, R A; Paech, K; Williams, E R (2000) Energetics from slow infrared multiphoton dissociation of biomolecules. J Phys Chem A 104:3188-96
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Strittmatter, E F; Lemoff, A S; Williams, E R (2000) Structure of cationized glycine, gly.m (m = be, mg, ca, sr, ba), in the gas phase: intrinsic effect of cation size on zwitterion stability. J Phys Chem A 104:9793-6
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Iavarone, A T; Jurchen, J C; Williams, E R (2000) Effects of solvent on the maximum charge state and charge state distribution of protein ions produced by electrospray ionization. J Am Soc Mass Spectrom 11:976-85
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Beyer, M; Williams, E R; Bondybey, V E (1999) Unimolecular reactions of dihydrated alkaline earth metal dications M2+(H2O)2, M = Be, Mg, Ca, Sr, and Ba: salt-bridge mechanism in the proton-transfer reaction M2+(H2O)2 --> MOH+ + H3O. J Am Chem Soc 121:1565-73
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Rodriguez-Cruz, S E; Jockusch, R A; Williams, E R (1999) Hydration energies and structures of alkaline Earth metal ions, m (h(2)o), N = 5-7, m = mg, ca, sr, and ba. J Am Chem Soc 121:8898-906
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