Review Articles Highlighting Our Work:

"Spectroscopy of the Potential Energy Surfaces for C-H and C-O Bond Activation by Transition Metal and Metal Oxide Cations," Ricardo B. Metz, Adv. Chem. Phys., 138, 331-373 (2008) (invited review article)

"Optical Spectroscopy and Photodissociation Dynamics of Multiply Charged Ions," Ricardo B. Metz, Int. J. Mass Spectrom., 235, 131-143 (2004) (invited review article)

"Photofragment Spectroscopy of Covalently Bound Transition Metal Complexes: A Window into C-H and C-C Bond Activation by Transition Metal Ions," Ricardo B. Metz, Int. Rev. Phys. Chem., 23, 79-108 (2004) (invited review article)

Research Papers:

"How the Nature and Charge of Metal Cations Affect Vibrations in Acetone Solvent Molecules," Apakorn Phasuk, Joël Lemaire, Vincent Steinmetz, Philippe Maître and Ricardo B. Metz, Phys. Chem. Chem. Phys., 26, 3101-3109 (2024)

"Probing Adsorption of Methane onto Vanadium Cluster Ions via Vibrational Spectroscopy," Justine Kozubal, Tristan R. Heck and Ricardo B. Metz, J. Chem. Phys., 159, 174305 (13 pgs.) (2023)

"Al⁺ Activates Acetone to Form Pinacolate" Apakorn Phasuk and Ricardo B. Metz, J. Phys. Chem. Lett., 14, 6295-6300 (2023)

"Vibrational Spectroscopy and Structural Analysis of V⁺(C₂H₆)_n Clusters (n=1-4)" Jesse C. Marcum and Ricardo B. Metz, J. Phys. Chem. A, 127, 5091-5103 (2023)

"Photofragment Imaging Differentiates Between One- and Two-photon Dissociation Pathways in MgI⁺" Schuyler P. Lockwood and Ricardo B. Metz, J. Chem. Phys., 158, Art. No. 054303 (9 pgs.) (2023)

"Bonding, Thermodynamics, and Dissociation Dynamics of NiO⁺ and NiS⁺ Determined by Photofragment Imaging and Theory," Schuyler P. Lockwood, Tala Chunga and Ricardo B. Metz, J. Phys. Chem. A, 125, 7425-7436 (2021)

"Structures of M⁺(CH₄)_n (M = Ti, V) Based on Vibrational Spectroscopy and Density Functional Theory," Justine Kozubal, Tristan R. Heck and Ricardo B. Metz, J. Phys. Chem. A, 125, 4143-4151 (2021)

"Vibrational Spectroscopy of Intermediates and C-H Activation Products of Sequential Zr⁺ Reactions with CH₄," Justine Kozubal, Tristan R. Heck and Ricardo B. Metz, J. Phys. Chem. A, 124, 8235-8245 (2020)

"Exciton Energy Transfer Reveals Spectral Signatures of Excited States in Clusters," Wenchao Lu, Ricardo B. Metz, Tyler P. Troy, Oleg Kostko and Musahid Ahmed, Phys. Chem. Chem. Phys. 22, 14284-14292 (2020)

"Vibrational Spectroscopy of Cr⁺(NH₃)_n (n=1-6) Reveals Coordination and Hydrogen-Bonding Motifs," Justine Kozubal, Tristan R. Heck and Ricardo B. Metz, J. Phys. Chem. A 123, 4929-4936 (2019)

"Probing Reactivity of Gold Atoms with Acetylene and Ethylene with VUV Photoionization Mass Spectrometry and ab initio Studies," Ricardo B. Metz, Gokhan Altinay, Oleg Kostko and Musahid Ahmed, J. Phys. Chem. A 123, 2194-2202 (2019)

"Bond Dissociation Energy and Electronic Spectroscopy of Cr⁺(NH₃) and its Isotopomers," Muhammad Affawn Ashraf, Justine Kozubal and Ricardo B. Metz, J. Chem. Phys. 149, Art. No. 174301 (6 pgs.) (2018)

"Photofragment Imaging, Spectroscopy, and Theory of MnO⁺," Michael David Johnston, Matthew R. Gentry and Ricardo B. Metz, J. Phys. Chem. A 122, 8047-8053 (2018)

"Photofragment Imaging and Electronic Spectroscopy of Al₂⁺," Michael David Johnston, Schuyler P. Lockwood and Ricardo B. Metz, J. Chem. Phys. 148, Art. No. 214308 (7 pgs.) (2018)

"A Velocity Map Imaging Mass Spectrometer for Photofragments of Fast Ion Beams," Michael David Johnston,* Wright Lee Pearson III,* Greg Wang and Ricardo B. Metz, Rev. Sci. Instrum. 89, Art. No. 014102 (8 pgs.) (2018) (* equal contribution)

"Vibrational Spectroscopy of Fe₃⁺(CH₄)_n (n=1-3) and Fe₄⁺(CH₄)₄," Christopher W. Copeland, Muhammad Affawn Ashraf, Emily M. Boyle and Ricardo B. Metz, J. Phys. Chem. A, 121, 2132-2137 (2017)

"Vibrational Spectroscopy Reveals Varying Structural Motifs in Cu⁺(CH₄)_n and Ag⁺(CH₄)_n (n=1-6)," Abdulkadir Kocak, Muhammad Affawn Ashraf and Ricardo B. Metz, J. Phys. Chem. A, 119, 9653-9665 (2015)

"Vibrational Spectroscopy and Theory of Fe₂⁺(CH₄)_n (n=1-3)," Muhammad Affawn Ashraf, Christopher W. Copeland, Abdulkadir Kocak, Alexandra R. McEnroe and Ricardo B. Metz, Phys. Chem. Chem. Phys., 17, 25700-25704 (2015)

"Near Ultraviolet Photodissociation Spectroscopy of Mn⁺(H₂O) and Mn⁺(D₂O)," Wright Lee Pearson III, Christopher Copeland, Abdulkadir Kocak, Zachary Sallese and Ricardo B. Metz, J. Chem. Phys., 141, Art. No. 204305 (9 pgs.) (2014)

"Vibrational Spectroscopy of Co⁺(CH₄)_n and Ni⁺(CH₄)_n (n=1-4)," Abdulkadir Kocak, Zachary Sallese, Michael D. Johnston and Ricardo B. Metz, J. Phys. Chem. A, 118, 3253-3265 (2014)

"VUV Photoionization Measurements and Electronic Structure Calculations of the Ionization Energies of Gas-Phase Tantalum Oxides TaO_x (x=3-6)," Manori Perera, Kevin M. Roenitz, Ricardo B. Metz, Oleg Kostko and Musahid Ahmed, J. Spectrosc. Dyn., 4, Art. No. 21 (10 pgs.) (2014)        download accepted version of paper

"Vacuum Ultraviolet Photoionization Studies of PtCH₂ and H-Pt-CH₃: A Potential Energy Surface for the Pt + CH₄ Reaction," Manori Perera, Ricardo B. Metz, Oleg Kostko and Musahid Ahmed, Ang. Chemie Int. Ed., 52, 888-891 (2013)

"Vacuum-Ultraviolet Photoionization Measurement and ab Initio Calculation of the Ionization Energy of Gas-Phase SiO₂" Oleg Kostko, Musahid Ahmed and Ricardo B. Metz, J. Phys. Chem. A, 113, 1225-1230 (2009)

"Direct Determination of the Ionization Energies of PtC, PtO and PtO₂ with VUV Radiation," Murat Citir, Ricardo B. Metz, Leonid Belau and Musahid Ahmed, J. Phys. Chem. A, 112, 9584-9590 (2008)

"Mode Selective Photodissociation Dynamics in V⁺(OCO)," Murat Citir and Ricardo B. Metz, J. Chem. Phys., 128, 024307 (10 pages) (2008)

"Electronic and Vibrational Spectroscopy and Vibrationally Mediated Photodissociation of V⁺(OCO)," Murat Citir, Gokhan Altinay and Ricardo B. Metz, J. Phys. Chem. A, 110, 5051-5057 (2006)

"Direct Determination of the Ionization Energies of FeO and CuO with VUV Radiation," Ricardo B. Metz, Christophe Nicolas, Musahid Ahmed and Stephen R. Leone, J. Chem. Phys., 123, 114313 (6 pages) (2005)

"Electronic Spectroscopy and Photodissociation Dynamics of Co²⁺-Methanol Clusters: Co²⁺(CH₃OH)_n (n = 4-7)," Christopher J. Thompson, Kieron P. Faherty, Kay L. Stringer and Ricardo B. Metz, Phys. Chem. Chem. Phys., 7, 814-818 (2005)

"Photofragment Spectroscopy of Pi Complexes: Au⁺(C₂H₄) and Pt ⁺(C₂H₄)," Kay L. Stringer, Murat Citir and Ricardo B. Metz, J. Phys. Chem. A, 108, 6996-7002 (2004)

"Energies and Wavefunctions for Several One-Dimensional Potentials," Ricardo B. Metz, J. Chem. Educ., 81, 157 (2004) (MathCAD module for use with Physical Chemistry or Introductory Quantum Mechanics, also see the MathCAD in Physical Chemistry website)

"The Low-Lying Electronic States of FeO⁺: Rotational Analysis of the Resonance Enhanced Photodissociation Spectra of the ⁶P_7/2 <- X⁶S⁺ System ," Fernando Aguirre, John Husband, Christopher J. Thompson, Kay L. Stringer and Ricardo B. Metz, J. Chem. Phys. 119, 10194-10201 (2003)

"Electronic Spectroscopy of Predissociative States of Platinum Oxide Cation ," Christopher J. Thompson, Kay L. Stringer, Melanie McWilliams and Ricardo B. Metz, Chem. Phys. Lett. 376, 588 -594 (2003)

"Salt-Bridge Transition State for the Charge Separation Co²⁺(H₂O)₄ -> CoOH⁺(H₂O)₂ + H₃O⁺," Martin K. Beyer and Ricardo B. Metz, J. Phys. Chem. A, 107, 1760-1762 (2003).

"Electronic Spectroscopy of Intermediates Involved in the Conversion of Methane to Methanol by FeO⁺," Fernando Aguirre, John Husband, Christopher J. Thompson, Kay L. Stringer and Ricardo B. Metz, J. Chem. Phys. 116, 4071-4078 (2002)

"Methane-to-Methanol Conversion by Gas-Phase Transition Metal Oxide Cations: Experiment and Theory," Ricardo B. Metz, in Research Advances in Physical Chemistry Vol. 2, R. M. Mohan, Ed., Global, Trivandrum, India, pp. 35-43 (2001) (invited book chapter)

"Electronic Spectroscopy and Photodissociation Dynamics of Hydrated Co²⁺ Clusters: Co²⁺(H₂O)_n (n = 4-7)," Kieron P. Faherty, Christopher J. Thompson, Fernando Aguirre, Jodi Michne and Ricardo B. Metz, J. Phys. Chem. A, 105, 10054-10059 (2001).

"Photodissociation Spectra of Transition Metal Sulfides: Spin-Orbit Structure in Charge Transfer Bands of FeS⁺ and NiS⁺," John Husband, Fernando Aguirre, Christopher J. Thompson and Ricardo B. Metz, Chem. Phys. Lett. 342, 75-84 (2001).

"Photofragment Spectroscopy and Dynamics of NiOH⁺ and NiOH⁺(H₂O)," Christopher J. Thompson, Fernando Aguirre, John Husband and Ricardo B. Metz, J. Phys. Chem. A 104, 9901-9905 (2000).

"Photodissociation Dynamics of Hydrated Ni²⁺ Clusters: Ni²⁺(H₂O)_n (n = 4-7)," Christopher J. Thompson, John Husband, Fernando Aguirre and Ricardo B. Metz, J. Phys. Chem. A 104, 8155-8159 (2000).

"Photofragment Spectroscopy of FeCH₂⁺, CoCH₂⁺, and NiCH₂⁺ near the M⁺-CH₂ Dissociation Threshold," John Husband, Fernando Aguirre, Christopher J. Thompson, Christopher M. Laperle and Ricardo B. Metz, J. Phys. Chem. A 104, 2020-2024 (2000).

"Gas-phase Photodissociation of AuCH₂⁺: the Dissociation Threshold of Jet-Cooled and Rotationally Thermalized Ions," Fernando Aguirre, John Husband, Christopher J. Thompson and Ricardo B. Metz, Chem. Phys. Lett. 318, 466-470 (2000).

"Vibrationally Resolved Photofragment Spectroscopy of FeO⁺," John Husband, Fernando Aguirre, Peter Ferguson and Ricardo B. Metz, J. Chem. Phys. 111, 1433-1437 (1999).

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