1
|
Mella M. Higher order diffusion Monte Carlo propagators for linear rotors as diffusion on a sphere: development and application to O2@He(n). J Chem Phys 2011; 135:114504. [PMID: 21950868 DOI: 10.1063/1.3639190] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Exploiting the theoretical treatment of particles diffusing on corrugated surfaces and the isomorphism between the "particle on a sphere" and a linear molecule rotation, a new diffusion kernel is introduced to increase the order of diffusion Monte Carlo (DMC) simulations involving linear rotors. Tests carried out on model systems indicate the superior performances of the new rotational diffusion kernel with respect to the simpler alternatives previously employed. In particular, it is evidenced a second order convergence toward exact results with respect to the time step of dynamical correlation functions, a fact that guarantees an identical order for the diffusion part of the DMC projector. The algorithmic advantages afforded by the latter are discussed, especially with respect to the "a posteriori" and "on the fly" extrapolation schemes. As a first application to the new algorithm, the structure and energetics of O(2)@He(n) (n = 1-40) clusters have been studied. This was done to investigate the possible cause of the quenching of the reaction between O(2) and Mg witnessed upon increasing the size of superfluid He droplets used as a solvent. With the simulations on O(2) indicating a strong localization in the cluster core, the behaviour as a function of n is ascribed to the extremely fluxional comportment of Mg@He(n), which dwells far from the droplet center, albeit being solvated, when n is large.
Collapse
Affiliation(s)
- Massimo Mella
- Dipartimento di Scienze Chimiche ed Ambientali, Università degli Studi dell'Insubria, via Lucini 3, 22100 Como, Italy.
| |
Collapse
|
2
|
Wang G, Gong Y, Zhang Q, Zhou M. Formation and characterization of magnesium bisozonide and carbonyl complexes in solid argon. J Phys Chem A 2010; 114:10803-9. [PMID: 20857987 DOI: 10.1021/jp107434f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The reactions of magnesium atoms with dioxygen and dioxygen/carbon monoxide mixture have been investigated by matrix isolation infrared absorption spectroscopy. Magnesium atoms react with dioxygen in solid argon to form the inserted MgO(2) molecules under UV excitation, which were previously characterized. Annealing allows the dioxygen molecules to diffuse and to react with MgO(2) and form the magnesium bisozonide complex, Mg(O(3))(2), which is proposed to be coordinated by two argon atoms in solid argon matrix. The Mg(O(3))(2)(Ar)(2) complex is characterized to have two equivalent side-on bonded ozonide ligands with a D(2h) symmetry. The coordinated argon atoms can be replaced by carbon monoxide to give the magnesium bisozonide dicarbonyl complex, Mg(O(3))(2)(CO)(2), a neutral magnesium carbonyl complex with CO binding to the Mg(2+) center.
Collapse
Affiliation(s)
- Guanjun Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Fudan University, Shanghai 200433, People's Republic of China
| | | | | | | |
Collapse
|
3
|
Krasnokutski SA, Huisken F. Ultra-Low-Temperature Reactions of Mg Atoms with O2 Molecules in Helium Droplets. J Phys Chem A 2010; 114:7292-300. [DOI: 10.1021/jp103947z] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Serge A. Krasnokutski
- Laboratory Astrophysics Group of the Max Planck Institute for Astronomy at the Friedrich Schiller University Jena, Helmholtzweg 3, D-07743 Jena, Germany
| | - Friedrich Huisken
- Laboratory Astrophysics Group of the Max Planck Institute for Astronomy at the Friedrich Schiller University Jena, Helmholtzweg 3, D-07743 Jena, Germany
| |
Collapse
|
4
|
Campbell ML, Plane JMC. Kinetic Study of the Recombination Reaction of Gas Phase Pd(aS0) with O2 from 294 to 523 K. J Phys Chem A 2003. [DOI: 10.1021/jp022116i] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mark L. Campbell
- Chemistry Department, United States Naval Academy, Annapolis, Maryland 21402
| | - John M. C. Plane
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| |
Collapse
|
5
|
Reactions of ground state atomic calcium, Ca[4s2()], investigated by time-resolved atomic resonance absorption spectroscopy at elevated temperature. J Photochem Photobiol A Chem 2001. [DOI: 10.1016/s1010-6030(01)00449-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
6
|
Plane JMC, Rollason RJ. Kinetic Study of the Reactions of CaO with H2O, CO2, O2, and O3: Implications for Calcium Chemistry in the Mesosphere. J Phys Chem A 2001. [DOI: 10.1021/jp010810c] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. M. C. Plane
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| | - R. J. Rollason
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| |
Collapse
|
7
|
Campbell ML, Plane JMC. Kinetic Study of the Gas-Phase Reaction of Ca(1S0) with O2 from 296 to 623 K. J Phys Chem A 2001. [DOI: 10.1021/jp003808e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mark L. Campbell
- Chemistry Department, United States Naval Academy, Annapolis, Maryland 21402
| | - John M. C. Plane
- School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
| |
Collapse
|
8
|
Geng J, Husain D. Measurements of the Rates of Reactions of Ground State Atomic Calcium, Ca[4s2(1S0)], with Alkyl Bromides at Elevated Temperature by Time-Resolved Atomic Resonance Absorption Spectroscopy [Ca(41P1 - 41S0); λ = 422.7 nm]. Z PHYS CHEM 2001. [DOI: 10.1524/zpch.2001.215.9.1193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
We present a kinetic study of reactions of ground state atomic calcium, Ca[4
Collapse
|
9
|
Gerding M, Alpers M, von Zahn U, Rollason RJ, Plane JMC. Atmospheric Ca and Ca+layers: Midlatitude observations and modeling. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000ja900088] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
10
|
Campbell ML. Temperature-Dependent Rate Constants for the Reactions of Gas-Phase Lanthanides with O2. J Phys Chem A 1999. [DOI: 10.1021/jp991647c] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Mark L. Campbell
- Chemistry Department, United States Naval Academy, Annapolis, Maryland 21402
| |
Collapse
|
11
|
Affiliation(s)
- Roy E. McClean
- Chemistry Department, United States Naval Academy, Annapolis, Maryland 21402
| |
Collapse
|
12
|
Vinckier C, Helaers J. Kinetic Investigation of the Reaction Sr(1S) + O2 + He in the Temperature Range from 303 to 968 K. J Phys Chem A 1998. [DOI: 10.1021/jp981998b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- C. Vinckier
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - J. Helaers
- Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| |
Collapse
|
13
|
Hranisavljevic J, Fontijn A. Kinetics of Ground-State Cd Reactions with Cl2, O2, and HCl over Wide Temperature Ranges. J Phys Chem A 1997. [DOI: 10.1021/jp963074z] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jasmina Hranisavljevic
- High-Temperature Reaction Kinetics Laboratory, The Isermann Department of Chemical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180-3590
| | - Arthur Fontijn
- High-Temperature Reaction Kinetics Laboratory, The Isermann Department of Chemical Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180-3590
| |
Collapse
|
14
|
Andrews L, Chertihin GV, Thompson CA, Dillon J, Byrne S, Bauschlicher CW. Infrared Spectra and Quantum Chemical Calculations of Group 2 MO2, O2MO2, and Related Molecules. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp953763v] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lester Andrews
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901
| | - George V. Chertihin
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901
| | - Craig A. Thompson
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901
| | - Janet Dillon
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901
| | - Susan Byrne
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901
| | | |
Collapse
|
15
|
McNeil WJ, Lai ST, Murad E. A model for meteoric magnesium in the ionosphere. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/95ja02888] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
16
|
Andrews L, Saffell W, Yustein JT. Reactions of pulsed-laser evaporated lithium atoms with O2 and N2O. Chem Phys 1994. [DOI: 10.1016/0301-0104(94)00194-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
17
|
|