51
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On the Detectability of the ${\tilde{{\boldsymbol{X}}}}^{2}{\boldsymbol{A}}^{\prime\prime} $ HSS, HSO, and HOS Radicals in the Interstellar Medium. ACTA ACUST UNITED AC 2017. [DOI: 10.3847/1538-4357/aa582d] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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52
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Novak CM, Fortenberry RC. Vibrational frequencies and spectroscopic constants of three, stable noble gas molecules: NeCCH+, ArCCH+, and ArCN+. Phys Chem Chem Phys 2017; 19:5230-5238. [DOI: 10.1039/c6cp08140a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The search for possible, natural, noble gas molecules has led to quantum chemical, spectroscopic analysis of NeCCH+, ArCCH+, and ArCN+.
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Affiliation(s)
- Carlie M. Novak
- Department of Chemistry & Biochemistry
- Georgia Southern University
- Statesboro
- USA
| | - Ryan C. Fortenberry
- Department of Chemistry & Biochemistry
- Georgia Southern University
- Statesboro
- USA
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53
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Finney B, Fortenberry RC, Francisco JS, Peterson KA. A spectroscopic case for SPSi detection: The third-row in a single molecule. J Chem Phys 2016; 145:124311. [DOI: 10.1063/1.4963337] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Brian Finney
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | - Ryan C. Fortenberry
- Department of Chemistry and Biochemistry, Georgia Southern University, Statesboro, Georgia 30460, USA
| | - Joseph S. Francisco
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Kirk A. Peterson
- Department of Chemistry, Washington State University, Pullman, Washington 99164-4630, USA
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54
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Fortenberry RC, Lee TJ, Francisco JS. Quantum Chemical Analysis of the CO–HNN+ Proton-Bound Complex. J Phys Chem A 2016; 120:7745-7752. [DOI: 10.1021/acs.jpca.6b07515] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryan C. Fortenberry
- Department of Chemistry and Biochemistry, Georgia Southern University, Statesboro, Georgia 30460, United States
| | - Timothy J. Lee
- MS 245-1 NASA Ames Research Center, Moffett Field, California 94035-1000, United States
| | - Joseph S. Francisco
- Department of Chemistry, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
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55
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Sibaev M, Crittenden DL. An efficient and numerically stable procedure for generating sextic force fields in normal mode coordinates. J Chem Phys 2016; 144:214107. [DOI: 10.1063/1.4953080] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. Sibaev
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand
| | - D. L. Crittenden
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand
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56
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57
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58
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TOWARD THE ASTRONOMICAL DETECTION OF THE PROTON-BOUND COMPLEX NN–HCO+: IMPLICATIONS FOR THE SPECTRA OF PROTOPLANETARY DISKS. ACTA ACUST UNITED AC 2016. [DOI: 10.3847/0004-637x/819/2/141] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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59
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Potential interstellar noble gas molecules: ArOH + and NeOH + rovibrational analysis from quantum chemical quartic force fields. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molap.2015.12.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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60
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Fortenberry RC, Francisco JS. Energetics, structure, and rovibrational spectroscopic properties of the sulfurous anions SNO− and OSN−. J Chem Phys 2015; 143:184301. [DOI: 10.1063/1.4935056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ryan C. Fortenberry
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, USA
| | - Joseph S. Francisco
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
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61
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Yu Q, Bowman JM, Fortenberry RC, Mancini JS, Lee TJ, Crawford TD, Klemperer W, Francisco JS. Structure, Anharmonic Vibrational Frequencies, and Intensities of NNHNN+. J Phys Chem A 2015; 119:11623-31. [DOI: 10.1021/acs.jpca.5b09682] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qi Yu
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Joel M. Bowman
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Ryan C. Fortenberry
- Department
of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, United States
| | - John S. Mancini
- Department
of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
| | - T. Daniel Crawford
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - William Klemperer
- Department
of Chemistry, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Joseph S. Francisco
- Department
of Chemistry, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
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62
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Fortenberry RC, Lee TJ, Müller HS. Excited vibrational level rotational constants for SiC2: A sensitive molecular diagnostic for astrophysical conditions. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molap.2015.07.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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63
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Sibaev M, Crittenden DL. The PyPES library of high quality semi-global potential energy surfaces. J Comput Chem 2015; 36:2200-7. [DOI: 10.1002/jcc.24192] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 07/19/2015] [Accepted: 08/10/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Marat Sibaev
- Department of Chemistry; University of Canterbury; Christchurch New Zealand
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64
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Fortenberry RC, Francisco JS. Quartic force field-derived vibrational frequencies and spectroscopic constants for the isomeric pair SNO and OSN and isotopologues. J Chem Phys 2015; 143:084308. [DOI: 10.1063/1.4929472] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Ryan C. Fortenberry
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, USA
| | - Joseph S. Francisco
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
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65
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Fortenberry RC, Yu Q, Mancini JS, Bowman JM, Lee TJ, Crawford TD, Klemperer WF, Francisco JS. Communication: Spectroscopic consequences of proton delocalization in OCHCO+. J Chem Phys 2015; 143:071102. [DOI: 10.1063/1.4929345] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Ryan C. Fortenberry
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, USA
| | - Qi Yu
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, USA
| | - John S. Mancini
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, USA
| | - Joel M. Bowman
- Department of Chemistry and Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, USA
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, USA
| | | | - William F. Klemperer
- Department of Chemistry, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Joseph S. Francisco
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
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66
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Affiliation(s)
- Ryan C. Fortenberry
- Georgia Southern University, Department of Chemistry, Statesboro, Georgia 30460, United States
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67
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Morgan WJ, Fortenberry RC. Theoretical Rovibronic Treatment of the X̃ 2Σ+ and à 2Π States of C2H and the X̃ 1Σ+ State of C2H– from Quartic Force Fields. J Phys Chem A 2015; 119:7013-25. [DOI: 10.1021/acs.jpca.5b03489] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- W. James Morgan
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, United States
| | - Ryan C. Fortenberry
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, United States
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68
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Mackie CJ, Candian A, Huang X, Lee TJ, Tielens AGGM. Linear transformation of anharmonic molecular force constants between normal and Cartesian coordinates. J Chem Phys 2015; 142:244107. [DOI: 10.1063/1.4922891] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Cameron J. Mackie
- Leiden Observatory, Niels Bohrweg 2, 2333 CA, Leiden, The Netherlands
| | | | - Xinchuan Huang
- SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, California 94043, USA
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, USA
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69
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Theis RA, Fortenberry RC. Trihydrogen Cation with Neon and Argon: Structural, Energetic, and Spectroscopic Data from Quartic Force Fields. J Phys Chem A 2015; 119:4915-22. [DOI: 10.1021/acs.jpca.5b03058] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Riley A. Theis
- Georgia Southern University, Department
of Chemistry, Statesboro, Georgia 30460 United States
| | - Ryan C. Fortenberry
- Georgia Southern University, Department
of Chemistry, Statesboro, Georgia 30460 United States
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70
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Affiliation(s)
| | - Timothy J. Lee
- MS 245-1, Division of Space Science and Astrobiology, NASA Ames Research Center, Moffett Field, CA, USA
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71
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Thackston R, Fortenberry RC. The performance of low-cost commercial cloud computing as an alternative in computational chemistry. J Comput Chem 2015; 36:926-33. [PMID: 25753841 DOI: 10.1002/jcc.23882] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 12/16/2014] [Accepted: 02/08/2015] [Indexed: 01/15/2023]
Abstract
The growth of commercial cloud computing (CCC) as a viable means of computational infrastructure is largely unexplored for the purposes of quantum chemistry. In this work, the PSI4 suite of computational chemistry programs is installed on five different types of Amazon World Services CCC platforms. The performance for a set of electronically excited state single-point energies is compared between these CCC platforms and typical, "in-house" physical machines. Further considerations are made for the number of cores or virtual CPUs (vCPUs, for the CCC platforms), but no considerations are made for full parallelization of the program (even though parallelization of the BLAS library is implemented), complete high-performance computing cluster utilization, or steal time. Even with this most pessimistic view of the computations, CCC resources are shown to be more cost effective for significant numbers of typical quantum chemistry computations. Large numbers of large computations are still best utilized by more traditional means, but smaller-scale research may be more effectively undertaken through CCC services.
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Affiliation(s)
- Russell Thackston
- Department of Information Technology, Georgia Southern University, Statesboro, Georgia, 30460-8150
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72
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Morgan WJ, Fortenberry RC. Quartic force fields for excited electronic states: rovibronic reference data for the 1 (2)A' and 1 (2)A″ states of the isoformyl radical, HOC. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:965-972. [PMID: 25168234 DOI: 10.1016/j.saa.2014.07.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 07/23/2014] [Accepted: 07/28/2014] [Indexed: 06/03/2023]
Abstract
Quartic force fields (QFFs) have been shown to be an effective, accurate, and relatively compact means of computing rovibrational spectroscopic data for numerous molecules with numerous applications. However, excited states have been nearly excluded from the this approach since most accurate QFFs are based on the "gold standard" coupled cluster singles, doubles, and perturbative triples [CCSD(T)] method which is not readily extended to excited states. In this work, rovibronic spectroscopic data is provided for the isoformyl radical, a molecule of significance in combustion and astrochemistry, both through the traditional means of variational access to excited states with CCSD(T) and in the novel extension of QFFs routinely to treat electronically excited states through the standard coupled cluster excited state approach, equation of motion (EOM) CCSD. It is shown here that the new EOM-based QFF provides structural parameters and rotational constants that are quite close to those from a related CCSD(T)-based QFF for the 1 (2)A(″) excited state of HOC. The anharmonic vibrational frequency percent differences between the two QFFs are less than 0.4% for the O-H stretch, less than 1.9% for the C-O stretch, and around 3.0% for the bend. Even so, the pure excited state EOM-QFF anharmonic frequencies are still very good abinitio representations that may be applied to systems where electronically excited states are not variationally accessible. Additionally, rovibrational spectroscopic data is provided for the 1 (2)A(') ground state of HOC and for both the ground and excited state of DOC.
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Affiliation(s)
- W James Morgan
- Georgia Southern University, Department of Chemistry, Statesboro, GA 30460, USA
| | - Ryan C Fortenberry
- Georgia Southern University, Department of Chemistry, Statesboro, GA 30460, USA.
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73
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Fortenberry RC, Huang X, Crawford TD, Lee TJ. Quartic Force Field Rovibrational Analysis of Protonated Acetylene, C2H3+, and Its Isotopologues. J Phys Chem A 2014; 118:7034-43. [DOI: 10.1021/jp506441g] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryan C. Fortenberry
- Department
of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, United States
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
| | - Xinchuan Huang
- SETI Institute, 189 Bernardo
Avenue, Suite 100, Mountain View, California 94043, United States
| | - T. Daniel Crawford
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
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74
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Wang X, Huang X, Bowman JM, Lee TJ. Anharmonic rovibrational calculations of singlet cyclic C4 using a new ab initio potential and a quartic force field. J Chem Phys 2014; 139:224302. [PMID: 24329063 DOI: 10.1063/1.4837177] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We report a CCSD(T)/cc-pCV5Z quartic force field (QFF) and a semi-global CCSD(T)-F12b/aug-cc-pVTZ potential energy surface (PES) for singlet, cyclic C4. Vibrational fundamentals, combinations, and overtones are obtained using vibrational second-order perturbation theory (VPT2) and the vibrational configuration-interaction (VCI) approach. Agreement is within 10 cm(-1) between the VCI calculated fundamentals on the QFF and PES using the MULTIMODE (MM) program, and VPT2 and VCI results agree for the fundamentals. The agreement between VPT2-QFF and MM-QFF results is also good for the C4 combinations and overtones. The J = 1 and J = 2 rovibrational energies are reported from both VCI (MM) on the PES and VPT2 on the QFF calculations. The spectroscopic constants of (12)C4 and two C2v-symmetry, single (13)C-substituted isotopologues are presented, which may help identification of cyclic C4 in future experimental analyses or astronomical observations.
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Affiliation(s)
- Xiaohong Wang
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - Xinchuan Huang
- SETI Institute, 189 Bernardo Ave, Suite 100, Mountain View, California 94043, USA
| | - Joel M Bowman
- Cherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, USA
| | - Timothy J Lee
- MS 245-1, NASA Ames Research Center, Mofffett Field, California 94035, USA
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75
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Martin JML, Kesharwani MK. Assessment of CCSD(T)-F12 Approximations and Basis Sets for Harmonic Vibrational Frequencies. J Chem Theory Comput 2014; 10:2085-90. [DOI: 10.1021/ct500174q] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jan M. L. Martin
- Department
of Organic Chemistry, Weizmann Institute of Science, 76100 Reh̲ovot, Israel
| | - Manoj K. Kesharwani
- Department
of Organic Chemistry, Weizmann Institute of Science, 76100 Reh̲ovot, Israel
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76
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Fortenberry RC, Huang X, McCarthy MC, Crawford TD, Lee TJ. Fundamental Vibrational Frequencies and Spectroscopic Constants of cis- and trans-HOCS, HSCO, and Isotopologues via Quartic Force Fields. J Phys Chem B 2014; 118:6498-510. [DOI: 10.1021/jp412362h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryan C. Fortenberry
- Department of Chemistry, Georgia Southern University, Statesboro, Georgia 30460, United States
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
| | - Xinchuan Huang
- SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, California 94043, United States
| | - Michael C. McCarthy
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138, United States
| | - T. Daniel Crawford
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
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77
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Fortenberry RC, Huang X, Schwenke DW, Lee TJ. Limited rotational and rovibrational line lists computed with highly accurate quartic force fields and ab initio dipole surfaces. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 119:76-83. [PMID: 23692860 DOI: 10.1016/j.saa.2013.03.092] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2013] [Revised: 03/27/2013] [Accepted: 03/31/2013] [Indexed: 06/02/2023]
Abstract
In this work, computational procedures are employed to compute the rotational and rovibrational spectra and line lists for H2O, CO2, and SO2. Building on the established use of quartic force fields, MP2 and CCSD(T) Dipole Moment Surfaces (DMSs) are computed for each system of study in order to produce line intensities as well as the transition energies. The computed results exhibit a clear correlation to reference data available in the HITRAN database. Additionally, even though CCSD(T) DMSs produce more accurate intensities as compared to experiment, the use of MP2 DMSs results in reliable line lists that are still comparable to experiment. The use of the less computationally costly MP2 method is beneficial in the study of larger systems where use of CCSD(T) would be more costly.
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78
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Fortenberry RC, Crawford TD, Lee TJ. Vibrational frequencies and spectroscopic constants for 1 3A' HNC and 1 3A' HOC+ from high-accuracy quartic force fields. J Phys Chem A 2013; 117:11339-45. [PMID: 24102307 DOI: 10.1021/jp408750h] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The spectroscopic constants and vibrational frequencies for the 1 (3)A' states of HNC, DNC, HOC(+), and DOC(+) are computed and discussed in this work. The reliable CcCR quartic force field based on high-level coupled cluster ab initio quantum chemical computations is exclusively utilized to provide the anharmonic potential. Then, second-order vibrational perturbation theory and vibrational configuration interaction methods are employed to treat the nuclear Schrödinger equation. Second-order perturbation theory is also employed to provide spectroscopic data for all molecules examined. The relationship between these molecules and the corresponding 1 (3)A' HCN and HCO(+) isomers is further developed here. These data are applicable to laboratory studies involving formation of HNC and HOC(+) as well as astronomical observations of chemically active astrophysical environments.
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Affiliation(s)
- Ryan C Fortenberry
- Department of Chemistry, Georgia Southern University , Statesboro, Georgia 30460, United States
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79
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Huang X, Fortenberry RC, Lee TJ. Protonated nitrous oxide, NNOH+: Fundamental vibrational frequencies and spectroscopic constants from quartic force fields. J Chem Phys 2013; 139:084313. [DOI: 10.1063/1.4819069] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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80
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81
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Polyansky OL, Ovsyannikov RI, Kyuberis AA, Lodi L, Tennyson J, Zobov NF. Calculation of Rotation–Vibration Energy Levels of the Water Molecule with Near-Experimental Accuracy Based on an ab Initio Potential Energy Surface. J Phys Chem A 2013; 117:9633-43. [DOI: 10.1021/jp312343z] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Oleg L. Polyansky
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E
6BT, United Kingdom
- Institute
of Applied Physics, Russian Academy of Science, Ulyanov Street 46, Nizhny
Novgorod 603950, Russia
| | - Roman I. Ovsyannikov
- Institute
of Applied Physics, Russian Academy of Science, Ulyanov Street 46, Nizhny
Novgorod 603950, Russia
| | - Aleksandra A. Kyuberis
- Institute
of Applied Physics, Russian Academy of Science, Ulyanov Street 46, Nizhny
Novgorod 603950, Russia
| | - Lorenzo Lodi
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E
6BT, United Kingdom
| | - Jonathan Tennyson
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E
6BT, United Kingdom
| | - Nikolai F. Zobov
- Institute
of Applied Physics, Russian Academy of Science, Ulyanov Street 46, Nizhny
Novgorod 603950, Russia
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82
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Huang X, Fortenberry RC, Wang Y, Francisco JS, Crawford TD, Bowman JM, Lee TJ. Dipole Surface and Infrared Intensities for the cis- and trans-HOCO and DOCO Radicals. J Phys Chem A 2012. [DOI: 10.1021/jp3102546] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xinchuan Huang
- SETI Institute, 189 Bernardo Avenue, Suite
100, Mountain View, California 94043,
United States
| | - Ryan C. Fortenberry
- NASA Ames Research Center, Moffett Field, California 94035-1000, United
States
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Yimin Wang
- Cherry L. Emerson
Center for Scientific
Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Joseph S. Francisco
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United
States
| | - T. Daniel Crawford
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Joel M. Bowman
- Cherry L. Emerson
Center for Scientific
Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, United
States
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83
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Fortenberry RC, Huang X, Crawford TD, Lee TJ. The 1 3A′ HCN and 1 3A′ HCO+ Vibrational Frequencies and Spectroscopic Constants from Quartic Force Fields. J Phys Chem A 2012; 117:9324-30. [DOI: 10.1021/jp309243s] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryan C. Fortenberry
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
| | - Xinchuan Huang
- SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, California 94043,
United States
| | - T. Daniel Crawford
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
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84
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Fortenberry RC, Huang X, Francisco JS, Crawford TD, Lee TJ. Fundamental Vibrational Frequencies and Spectroscopic Constants of HOCS+, HSCO+, and Isotopologues via Quartic Force Fields. J Phys Chem A 2012; 116:9582-90. [DOI: 10.1021/jp3073206] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryan C. Fortenberry
- NASA Ames Research Center, Moffett Field, California 94035-1000, United
States
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia
24061, United States
| | - Xinchuan Huang
- SETI, 189 Bernardo Avenue, Suite 100, Mountain View, California 94043,
United States
| | - Joseph S. Francisco
- Department of Chemistry, Purdue University, West Lafayette, Indiana
47907, United States
| | - T. Daniel Crawford
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia
24061, United States
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, United
States
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85
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Fortenberry RC, Huang X, Francisco JS, Crawford TD, Lee TJ. Quartic force field predictions of the fundamental vibrational frequencies and spectroscopic constants of the cations HOCO+ and DOCO+. J Chem Phys 2012; 136:234309. [DOI: 10.1063/1.4729309] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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86
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Inostroza N, Huang X, Lee TJ. Accurate ab initio quartic force fields of cyclic and bent HC2N isomers. J Chem Phys 2011; 135:244310. [DOI: 10.1063/1.3671389] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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87
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Fortenberry RC, Huang X, Francisco JS, Crawford TD, Lee TJ. Vibrational frequencies and spectroscopic constants from quartic force fields for cis-HOCO: The radical and the anion. J Chem Phys 2011; 135:214303. [DOI: 10.1063/1.3663615] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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88
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Fortenberry RC, Huang X, Francisco JS, Crawford TD, Lee TJ. The trans-HOCO radical: Quartic force fields, vibrational frequencies, and spectroscopic constants. J Chem Phys 2011; 135:134301. [DOI: 10.1063/1.3643336] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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89
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Yachmenev A, Yurchenko SN, Ribeyre T, Thiel W. High-level ab initio potential energy surfaces and vibrational energies of H2CS. J Chem Phys 2011; 135:074302. [DOI: 10.1063/1.3624570] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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90
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Feller D, Peterson KA, Grant Hill J. On the effectiveness of CCSD(T) complete basis set extrapolations for atomization energies. J Chem Phys 2011; 135:044102. [DOI: 10.1063/1.3613639] [Citation(s) in RCA: 224] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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91
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Császár AG. Anharmonic molecular force fields. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2011. [DOI: 10.1002/wcms.75] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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92
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Oxide clusters as source of the third oxygen atom for the formation of carbonates in alkaline earth dehydrated zeolites. J Catal 2011. [DOI: 10.1016/j.jcat.2011.05.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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93
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Huang X, Taylor PR, Lee TJ. Highly Accurate Quartic Force Fields, Vibrational Frequencies, and Spectroscopic Constants for Cyclic and Linear C3H3+. J Phys Chem A 2011; 115:5005-16. [DOI: 10.1021/jp2019704] [Citation(s) in RCA: 122] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xinchuan Huang
- SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, California 94043, United States
| | - Peter R. Taylor
- Victorian Life Sciences Computation Initiative and Department of Chemistry, University of Melbourne, Victoria 3010, Australia
| | - Timothy J. Lee
- NASA Ames Research Center, Moffett Field, California 94035-1000, United States
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94
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Huang X, Valeev EF, Lee TJ. Comparison of one-particle basis set extrapolation to explicitly correlated methods for the calculation of accurate quartic force fields, vibrational frequencies, and spectroscopic constants: Application to H2O, N2H+, NO2+, and C2H2. J Chem Phys 2010; 133:244108. [DOI: 10.1063/1.3506341] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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95
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Xavier FGD, Kumar S. Ab initio adiabatic and quasidiabatic potential energy surfaces of lowest four electronic states of the H+ + O2 system. J Chem Phys 2010; 133:164304. [PMID: 21033785 DOI: 10.1063/1.3495956] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Ab initio global adiabatic and quasidiabatic potential energy surfaces of lowest four electronic (1-4 (3)A(")) states of the H(+)+O(2) system have been computed in the Jacobi coordinates (R,r,γ) using Dunning's cc-pVTZ basis set at the internally contracted multireference (single and double) configuration interaction level of accuracy, which are relevant to the dynamics studies of inelastic vibrational and charge transfer processes observed in the scattering experiments. The computed equilibrium geometry parameters of the bound [HO(2)](+) ion in the ground electronic state and other parameters for the transition state for the isomerization process, HOO(+)⇌OOH(+) are in good quantitative agreement with those available from the high level ab initio calculations, thus lending credence to the accuracy of the potential energy surfaces. The nonadiabatic couplings between the electronic states have been analyzed in both the adiabatic and quasidiabatic frameworks by computing the nonadiabatic coupling matrix elements and the coupling potentials, respectively. It is inferred that the dynamics of energy transfer processes in the scattering experiments carried out in the range of 9.5-23 eV would involve all the four electronic states.
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Affiliation(s)
- F George D Xavier
- Department of chemistry, Indian Institute of Technology Madras, Chennai 600 036, India
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96
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Karton A, Martin JML. Performance of W4 theory for spectroscopic constants and electrical properties of small molecules. J Chem Phys 2010; 133:144102. [DOI: 10.1063/1.3489113] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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97
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Lee TJ, Huang X, Dateo CE. The effect of approximating some molecular integrals in coupled-cluster calculations: fundamental frequencies and rovibrational spectroscopic constants for isotopologues of cyclopropenylidene. Mol Phys 2010. [DOI: 10.1080/00268970902769455] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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98
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Keçeli M, Shiozaki T, Yagi K, Hirata S. Anharmonic vibrational frequencies and vibrationally-averaged structures of key species in hydrocarbon combustion: HCO+, HCO, HNO, HOO, HOO–, CH3 +, and CH3. Mol Phys 2010. [DOI: 10.1080/00268970902889626] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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99
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Nguyen TL, Barker JR. Sums and Densities of Fully Coupled Anharmonic Vibrational States: A Comparison of Three Practical Methods. J Phys Chem A 2010; 114:3718-30. [DOI: 10.1021/jp100132s] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thanh Lam Nguyen
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143
| | - John R. Barker
- Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143
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100
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Feller D, Peterson KA. High level coupled cluster determination of the structure, frequencies, and heat of formation of water. J Chem Phys 2009; 131:154306. [DOI: 10.1063/1.3246353] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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