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Pereira CCL, Maurice R, Lucena AF, Hu S, Gonçalves AP, Marçalo J, Gibson JK, Andrews L, Gagliardi L. Thorium and Uranium Carbide Cluster Cations in the Gas Phase: Similarities and Differences between Thorium and Uranium. Inorg Chem 2013; 52:10968-75. [DOI: 10.1021/ic401058b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Cláudia C. L. Pereira
- Unidade de Ciências
Químicas e Radiofarmacêuticas, IST/ITN,
Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Rémi Maurice
- Department
of Chemistry, Supercomputing Institute and Chemical Theory
Center, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - Ana F. Lucena
- Unidade de Ciências
Químicas e Radiofarmacêuticas, IST/ITN,
Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Shuxian Hu
- Department
of Chemistry, Supercomputing Institute and Chemical Theory
Center, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
| | - António P. Gonçalves
- Unidade de Ciências
Químicas e Radiofarmacêuticas, IST/ITN,
Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - Joaquim Marçalo
- Unidade de Ciências
Químicas e Radiofarmacêuticas, IST/ITN,
Instituto Superior Técnico, Universidade Técnica de Lisboa, 2686-953 Sacavém, Portugal
| | - John K. Gibson
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Laura Gagliardi
- Department
of Chemistry, Supercomputing Institute and Chemical Theory
Center, University of Minnesota, Minneapolis, Minnesota 55455-0431, United States
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Aubriet F, Poleunis C, Muller JF, Bertrand P. Laser ablation and secondary ion mass spectrometry of inorganic transition-metal compounds. Part I: comparison between static ToF-SIMS and LA-FTICRMS. JOURNAL OF MASS SPECTROMETRY : JMS 2006; 41:527-42. [PMID: 16541387 DOI: 10.1002/jms.1011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Most of the first-row transition-metal oxides, M(A)O(B) (M = Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn) were examined by static secondary ion mass spectrometry (s-SIMS) and laser ablation/ionization Fourier transform ion cyclotron resonance mass spectrometry (LA-FTICRMS). Positive and negative ions show strong correlation between the studied oxide and the detected cluster ions. Specific M(x)O(y) (+/-) species were systematically observed with both MS techniques for each investigated M(A)O(B) transition-metal oxide. Moreover, the ion composition and ion distribution are greatly dependent on the ionization technique. Laser ablation (LA)/ionization leads to larger cluster ions (ionic species with nearly hundred atoms were in particular detected for Sc2O3 and Y2O3 oxides), whereas hydrogenated, dihydrogenated, and sometimes trihydrogenated species were observed in s-SIMS. However, the ion distribution for a given M(x)O(y) (+/-) ion series (i.e. ions including the same number of metal atoms M) generally presented important similarities in both techniques.Finally, it was demonstrated that the chemical state of metal atoms in the observed ionic species is closely dependent on the metal electronic valence shell. High valence states (+III, +IV, +V, and +VI) are favored for metals with a less-than-half full valence shell configuration, whereas for other first-row transition metals (manganese, iron, cobalt, nickel, copper and zinc) lower metal valence states (0, +I or, +II) are involved.
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Affiliation(s)
- Frédéric Aubriet
- Unité de Physico-Chimie et de Physique des Matériaux, Université catholique de Louvain, Croix du Sud 1, B-1348 Louvain-la-Neuve, Belgium.
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Slanina Z, Kobayashi K, Nagase S. Ca@C82 isomers: Computed temperature dependency of relative concentrations. J Chem Phys 2004; 120:3397-400. [PMID: 15268495 DOI: 10.1063/1.1641004] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Relative concentrations of nine isomers of Ca at C82 derived from the C82 isolated-pentagon-rule satisfying cages are computed in a wide temperature interval. The computations are based on the Gibbs energy constructed from partition functions supplied with molecular parameters from density functional theory calculations. Five structures show significant populations at higher temperatures: C2v > Cs > C2 > C3v > Cs. The computed relative stabilities agree well with available observations.
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Affiliation(s)
- Zdenek Slanina
- Department of Theoretical Studies, Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Aichi, Japan.
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8
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Zhang R, Achiba Y, Fisher KJ, Gadd GE, Hopwood FG, Ishigaki T, Smith DR, Suzuki S, Willett GD. Laser Ablation Mass Spectrometry of Pyrolyzed Koppers Coal-Tar Pitch: A Precursor for Fullerenes and Metallofullerenes. J Phys Chem B 1999. [DOI: 10.1021/jp9910791] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rui Zhang
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Yohji Achiba
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Keith J. Fisher
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Gerard E. Gadd
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Femia G. Hopwood
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Toshinobu Ishigaki
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Derek R. Smith
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Shinzo Suzuki
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
| | - Gary D. Willett
- School of Chemistry, University of New South Wales, NSW 2052, Australia, Australian Nuclear Science and Technology Organization, Private Mailbag 1, Menai NSW 2234, Australia, and Department of Chemistry, Tokyo Metropolitan University, Hachioji, Tokyo 192-03, Japan
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