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Köckert H, Gentleman AS, Pickering J, Mackenzie SR. A velocity map imaging study of multiphoton photodissociation and photoionisation dynamics in niobium oxide, NbO. Mol Phys 2021. [DOI: 10.1080/00268976.2020.1821924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Hansjochen Köckert
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, Oxford, UK
| | - Alexander S. Gentleman
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, Oxford, UK
| | - Jack Pickering
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, Oxford, UK
| | - Stuart R. Mackenzie
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, Oxford, UK
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Martini P, Kranabetter L, Goulart M, Rasul B, Gatchell M, Scheier P, Echt O. Atomic Gold Ions Clustered with Noble Gases: Helium, Neon, Argon, Krypton, and Xenon. J Phys Chem A 2019; 123:9505-9513. [PMID: 31621319 DOI: 10.1021/acs.jpca.9b06715] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
High-resolution mass spectra of helium droplets doped with gold and ionized by electrons reveal HenAu+ cluster ions. Additional doping with heavy noble gases results in NenAu+, ArnAu+, KrnAu+, and XenAu+ cluster ions. The high stability predicted for covalently bonded Ar2Au+, Kr2Au+, and Xe2Au+ is reflected in their relatively high abundance. Surprisingly, the abundance of Ne2Au+, which is predicted to have zero covalent bonding character and no enhanced stability, features a local maximum, too. The predicted size and structure of complete solvation shells surrounding ions with essentially nondirectional bonding depends primarily on the ratio σ* of the ion-ligand versus the ligand-ligand distance. For Au+ solvated in helium and neon, the ratio σ* is slightly below 1, favoring icosahedral packing in agreement with a maximum observed in the corresponding abundance distributions at n = 12. HenAu+ appears to adopt two additional solvation shells of Ih symmetry, containing 20 and 12 atoms, respectively. For ArnAu+, with σ* ≈ 0.67, one would expect a solvation shell of octahedral symmetry, in agreement with an enhanced ion abundance at n = 6. Another anomaly in the ion abundance at Ar9Au+ matches a local maximum in its computed dissociation energy.
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Affiliation(s)
- Paul Martini
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstr. 25 , A-6020 Innsbruck , Austria
| | - Lorenz Kranabetter
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstr. 25 , A-6020 Innsbruck , Austria
| | - Marcelo Goulart
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstr. 25 , A-6020 Innsbruck , Austria
| | - Bilal Rasul
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstr. 25 , A-6020 Innsbruck , Austria
- Department of Physics , University of Sargodha , 40100 Sargodha , Pakistan
| | - Michael Gatchell
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstr. 25 , A-6020 Innsbruck , Austria
- Department of Physics , Stockholm University , 106 91 Stockholm , Sweden
| | - Paul Scheier
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstr. 25 , A-6020 Innsbruck , Austria
| | - Olof Echt
- Institut für Ionenphysik und Angewandte Physik, Universität Innsbruck , Technikerstr. 25 , A-6020 Innsbruck , Austria
- Department of Physics , University of New Hampshire , Durham , New Hampshire NH 03824 , United States
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Gentleman AS, Iskra A, Köckert H, Mackenzie SR. Photodissociation dynamics and the dissociation energy of vanadium monoxide, VO, investigated using velocity map imaging. Phys Chem Chem Phys 2019; 21:15560-15567. [PMID: 31265053 DOI: 10.1039/c9cp02120e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Velocity map imaging has been employed to study multi-photon fragmentation of vanadium monoxide (VO) via the C 4Σ- state. The fragmentation dynamics are interpreted in terms of dissociation at the three-photon level, with the first photon weakly resonant with transitions to vibrational energy levels of the C 4Σ- state. The dissociation channels accessed are shown to depend strongly on the vibrational level via which excitation takes place. Analysis of the evolution of the kinetic energy release spectrum with photon energy leads to a refined value for the dissociation energy of ground state VO of D0(VO) = 53 126 ± 263 cm-1.
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Affiliation(s)
- Alexander S Gentleman
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford, OX1 3QZ, UK.
| | - Andreas Iskra
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford, OX1 3QZ, UK.
| | - Hansjochen Köckert
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford, OX1 3QZ, UK.
| | - Stuart R Mackenzie
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, South Parks Road, Oxford, OX1 3QZ, UK.
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Cooper GA, Gentleman AS, Iskra A, Mackenzie SR. Photofragmentation dynamics and dissociation energies of MoO and CrO. J Chem Phys 2017; 147:013921. [DOI: 10.1063/1.4979979] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Graham A. Cooper
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Alexander S. Gentleman
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Andreas Iskra
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Stuart R. Mackenzie
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
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Cooper GA, Kartouzian A, Gentleman AS, Iskra A, van Wijk R, Mackenzie SR. Dissociation energies of Ag–RG (RG = Ar, Kr, Xe) and AgO molecules from velocity map imaging studies. J Chem Phys 2015; 143:124302. [DOI: 10.1063/1.4931486] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Graham A. Cooper
- Physical and Theoretical Chemistry Laboratory, Oxford Chemistry, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Aras Kartouzian
- Physical and Theoretical Chemistry Laboratory, Oxford Chemistry, South Parks Road, Oxford OX1 3QZ, United Kingdom
- Department of Physical Chemistry, Catalysis Research Center, Technische Universität München, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Alexander S. Gentleman
- Physical and Theoretical Chemistry Laboratory, Oxford Chemistry, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Andreas Iskra
- Physical and Theoretical Chemistry Laboratory, Oxford Chemistry, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Robert van Wijk
- Physical and Theoretical Chemistry Laboratory, Oxford Chemistry, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Stuart R. Mackenzie
- Physical and Theoretical Chemistry Laboratory, Oxford Chemistry, South Parks Road, Oxford OX1 3QZ, United Kingdom
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Grenier R, To QD, Lara-Castells MPD, Léonard C. Argon Interaction with Gold Surfaces: Ab Initio-Assisted Determination of Pair Ar–Au Potentials for Molecular Dynamics Simulations. J Phys Chem A 2015; 119:6897-908. [DOI: 10.1021/acs.jpca.5b03769] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Romain Grenier
- Université
Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle,
MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
| | - Quy-Dong To
- Université
Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle,
MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
| | | | - Céline Léonard
- Université
Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle,
MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
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Mancera LA, Benoit DM. The Nature and Role of the Gold–Krypton Interactions in Small Neutral Gold Clusters. J Phys Chem A 2015; 119:3075-88. [DOI: 10.1021/jp513021q] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luis A. Mancera
- Institute of Theoretical Chemistry, University of Ulm, Albert-Einstein-Allee 11, D-89069, Ulm, Germany
| | - David M. Benoit
- The University of Hull, Cottingham Road, Kingston upon Hull HU6 7RX, U.K
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Parry IS, Hermes AC, Kartouzian A, Mackenzie SR. Imaging the photodissociation dynamics of neutral metal clusters: copper dimer, Cu2, and copper oxide, CuO. Phys Chem Chem Phys 2014; 16:458-66. [DOI: 10.1039/c3cp53214c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Mancera LA, Benoit DM. Towards an understanding of the vibrational spectrum of the neutral Au7cluster. Phys Chem Chem Phys 2013; 15:1929-43. [DOI: 10.1039/c2cp43211k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Hopkins WS, Mackenzie SR. Dissociation dynamics of the low-lying Rydberg states of Xe2: a velocity map imaging study. Mol Phys 2012. [DOI: 10.1080/00268976.2012.698027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Scott Hopkins W, Mackenzie SR. Communication: Imaging wavefunctions in dissociative photoionization. J Chem Phys 2011; 135:081104. [DOI: 10.1063/1.3632103] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gardner AM, Gutsmiedl KA, Wright TG, Lee EPF, Breckenridge WH, Rajbhandari S, Chapman CYN, Viehland LA. Theoretical Study of M+−RG Complexes (M = Ga, In; RG = He−Rn). J Phys Chem A 2011; 115:6979-85. [DOI: 10.1021/jp1122079] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adrian M. Gardner
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K
| | - Kayla A. Gutsmiedl
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K
| | - Timothy G. Wright
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, U.K
| | - Edmond P. F. Lee
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - W. H. Breckenridge
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Shristi Rajbhandari
- Science Department, Chatham University, Pittsburgh Pennsylvania 15232, United States
| | - Chivone Y. N. Chapman
- Science Department, Chatham University, Pittsburgh Pennsylvania 15232, United States
| | - Larry A. Viehland
- Science Department, Chatham University, Pittsburgh Pennsylvania 15232, United States
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Hopkins WS, Woodham AP, Plowright RJ, Wright TG, Mackenzie SR. Xe+ formation following photolysis of Au–Xe: A velocity map imaging study. J Chem Phys 2011; 134:094311. [DOI: 10.1063/1.3556944] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Tong XF, Yang CL, Wang MS, Ma XG, Wang DH. Interactions of Mz–X complexes (M = Cu, Ag, and Au; X = He, Ne, and Ar; and z = ±1). J Chem Phys 2011; 134:024306. [DOI: 10.1063/1.3526955] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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