Carol Robinson Mass Spectrometry Group

Matthew Bush Biography As an undergraduate, I used resonance enhanced multiphoton ionization and time-of-flight mass spectrometry to study the gas-phase electronic structure metal carbonyls with Professor William E. Hollingsworth at Carleton College, where I received a B.A. in chemistry with a concentration in Environmental and Technology Studies. I received my Ph.D. in chemistry with Professor Evan R. Williams and Professor Richard J. Saykally in the Department of Chemistry at the University of California, Berkeley. My dissertation focused on the use of infrared laser spectroscopy, mass spectrometry, and computational chemistry to study biomolecular and hydrated ions in the gas phase. Publications 22. Bush, M. F.; Saykally, R. J.; Williams, E. R. “Infrared Action Spectra of Ca2+(H2O)11–69 Exhibit Spectral Signatures for Condensed-Phase Structures with Increasing Cluster Size” J. Am. Chem. Soc. 2008, DOI: 10.1021/ja804621r. web 21. Bush, M. F.; Oomens, J.; Saykally, R. J.; Williams, E. R. “Alkali Metal Ion Binding to Glutamine and Glutamine Derivatives Investigated by Infrared Action Spectroscopy and Theory” J. Phys. Chem. A 2008, 112, 8578–8584. web 20. Bush, M. F.; Saykally, R. J.; Williams, E. R. “Reactivity and Infrared Spectroscopy of Gaseous Hydrated Trivalent Metal Ions” J. Am. Chem. Soc. 2008, 130, 6463–6471. web 19. Bush, M. F.; Oomens, J.; Saykally, R. J.; Williams, E. R. “Effects of Alkaline Earth Metal Complexation on Amino Acid Zwitterion Stability: Results from Infrared Action Spectroscopy” J. Am. Chem. Soc. 2008, 130, 6463–6471. web 18. Donald, W. A.; Leib, R. D.; O'Brien, J. T.; Bush, M. F.; Williams, E. R. “The Absolute Standard Hydrogen Electrode Potential Measured by Reduction of Aqueous Nanodrops in the Gas Phase” J. Am. Chem. Soc. 2008, 130, 3371–3381. web 17. Bush, M. F.; Prell, J. S.; Saykally, R. J.; Williams, E. R. “One Water Molecule Stabilizes the Cationized Arginine Zwitterion” J. Am. Chem. Soc. 2007, 129, 13544–13553. web 16. Bush, M. F.; Saykally, R. J.; Williams, E. R. “Early Hydration of the Calcium Dication: Evidence for Second Shell Formation from Infrared Spectroscopy” ChemPhysChem 2007, 8, 2245–2253. web 15. Forbes, M. W.; Bush, M. F.; Polfer, N. C.; Oomens, J.; Dunbar, R. C.; Williams, E. R. “Infrared Spectroscopy of Arginine Cation Complexes: Direct Observation of Gas-phase Zwitterions” J. Phys. Chem. A 2007, 111, 11759–11770. web 14. Bush, M. F.; Forbes, M. W.; Jockusch, R. A.; Oomens, J.; Polfer, N. C.; Saykally, R. J.; Williams, E. R. “Infrared Spectroscopy of Cationized Lysine and e-N-methyl-lysine in the Gas Phase: Effects of Alkali Metal Ion Size and Proton Affinity on Zwitterion Stability” J. Phys. Chem. A 2007, 111, 7753–7760. web 13. Leib, R. D.; Donald, W. A.; O'Brien, J. T.; Bush, M. F.; Williams, E. R. “Reduction Potential of 1 M Aqueous Ruthenium(III) Hexaamine in the Gas Phase: A Route Towards Establishing an Absolute Electrochemical Potential” J. Am. Chem. Soc. 2007, 129, 7716–7717. web 12. Leib, R. D.; Donald, W. A.; Bush, M. F.; O'Brien, J. T.; Williams, E. R. “Nonergodicity in Electron Capture Dissociation Investigated Using Hydrated Ion Nanocalorimetry” J. Am. Soc. Mass Spectrom. 2007, 18, 1217–1231. web 11. Leib, R. D.; Donald, W. A.; Bush, M. F.; O'Brien, J. T.; Williams, E. R. “Internal Energy Deposition in Electron Capture Dissociation Measured using Hydrated Divalent Metal Ions as Nanocalorimeters” J. Am. Chem. Soc. 2007, 129, 4894–4895. web 10. Bush, M. F.; Saykally, R. J.; Williams, E. R. “Evidence for Water Rings in the Hexahydrated Sulfate Dianion from IR Spectroscopy” J. Am. Chem. Soc. 2007, 129, 2220–2221. web 9. Bush, M. F.; O'Brien, J. T.; Prell, J. S.; Saykally, R. J.; Williams, E. R. “Infrared Spectroscopy of Cationized Arginine in the Gas Phase: Direct Evidence for the Transition from Nonzwitterionic to Zwitterionic Structure” J. Am. Chem. Soc. 2007, 129, 1612–1622. web 8. Bush, M. F.; Saykally, R. J.; Williams, E. R. “Formation of Hydrated Triply Charged Metal Ions from Aqueous Solutions using Nanodrop Mass Spectrometry” Int. J. Mass Spectrom. 2006, 253, 256–262. web 7. Kamariotis, A.; Boyarkin, O. V.; Mercier, S.; Beck, R. D.; Bush, M. F.; Williams, E. R.; Rizzo, T. R. “Infrared Spectroscopy of hydrated amino acids in the gas phase: protonated and lithiated valine” J. Am. Chem. Soc. 2006, 128, 905–916. web 6. Lemoff, A. S.; Bush, M. F.; O'Brien, J. T.; Williams, E. R. “Structures of Lithiated Lysine and Structural Analogues in the Gas Phase: Effects of Water and Proton Affinity on Zwitterionic Stability” J. Phys. Chem. A 2006, 110, 8433–8442. web 5. Lemoff, A. S.; Wu, C. C.; Bush, M. F.; Williams, E. R. “Binding Energies of Water to Doubly Hydrated Cationized Glutamine and Structural Analogues in the Gas Phase” J. Phys. Chem. A 2006, 110, 3662–3669. web 4. Lemoff, A. S.; Bush, M. F.; Wu, C. C.; Williams, E. R. “Structures and hydration enthalpies of cationized glutamine and structural analogues in the gas phase” J. Am. Chem. Soc. 2005, 127, 10276–10286. web 3. Lemoff, A. S.; Bush, M. F.; Williams, E. R. “Structures of cationized proline analogues: Evidence for the Zwitterionic form” J. Phys. Chem. A 2005, 109, 1903–1910. web 2. Williams, E. R.; Jurchen, J. C.; Garcia, D. E.; Lemoff, A. S.; Bush, M. F. “Noncovalent Biomolecule Complexes Both Large and Small” Adv. Mass Spectrom 2004, 16, 79–94. 1. Lemoff, A. S.; Bush, M. F.; Williams, E. R. “Binding energies of water to sodiated valine and structural isomers in the gas phase: The effect of proton affinity on zwitterion stability” J. Am. Chem. Soc. 2003, 125, 13576–13584. web
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