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Akola J, Atodiresei N, Kalikka J, Larrucea J, Jones RO. Structure and dynamics in liquid bismuth and Bin clusters: A density functional study. J Chem Phys 2014; 141:194503. [DOI: 10.1063/1.4901525] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- J. Akola
- Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland
- COMP Centre of Excellence, Department of Applied Physics, Aalto University, FI-00076 Aalto, Finland
| | - N. Atodiresei
- Peter Grünberg Institut PGI-1 and Institute for Advanced Simulation IAS-1, Forschungszentrum Jülich, D-52425 Jülich, Germany
| | - J. Kalikka
- Department of Physics, Tampere University of Technology, P.O. Box 692, FI-33101 Tampere, Finland
| | - J. Larrucea
- Nanoscience Center, Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - R. O. Jones
- Peter Grünberg Institut PGI-1 and JARA/HPC, Forschungszentrum Jülich, D-52425 Jülich, Germany
- German Research School for Simulation Sciences, FZ Jülich and RWTH Aachen University, D-52425 Jülich, Germany
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Cox JL, Cherer DT, Perram GP. Electronic quenching of Bi2 v′=18–23 by rare gases and nitrogen. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2007.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Collisionless lifetimes for Bi2 A(0u+), v'=20-39, J'<or=105 have been measured using pulsed laser induced fluorescence techniques to investigate the effects of predissociation. The observed predissociation rates, Gamma=kpd(v')J(J+1), are quite rapid, ranging from kpd=1.53x10(2) s-1 for v'=21 to 1.5x10(5) s-1 for v'=39. The dense Bi2(A-->X) spectrum required both traditional lifetime measurements and synthetic spectrum fits to laser excitation spectra to determine the full range of observed rates. A single, repulsive potential responsible for the observed A-state predissociation could not be identified to adequately describe the vibrational dependence of the predissociation rates.
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Affiliation(s)
- Michael W Dolezal
- Department of Engineering Physics, Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio 45433-7765, USA
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Dai D, Whangbo MH, Ugrinov A, Sevov SC, Wang F, Li L, Villesuzanne A, Alekseyev AB, Liebermann HP, Buenker RJ. Analysis of the Effect of Spin−Orbit Coupling on the Electronic Structure and Excitation Spectrum of the Bi22- Anion in (K-crypt)2Bi2 on the Basis of Relativistic Electronic Structure Calculations. J Phys Chem A 2005; 109:1675-83. [PMID: 16833492 DOI: 10.1021/jp044675q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Bi2(2-) anions that have been characterized in (K-crypt)2Bi2 are isoelectronic with O2 but are diamagnetic and EPR-silent, unlike O2. The UV-vis spectrum measured for (K-crypt)2Bi2 shows two broad absorption peaks located at 2.05 and 2.85 eV, but no absorption at lower energies down to 0.62 eV. To account for these observations, the electronic structures of the isoelectronic diatomic dianions Q2(2-) (Q = N, P, As, Sb, Bi) were compared on the basis of relativistic density functional theory calculations, and the electronic excitations of Bi2(2-) were analyzed on the basis of relativistic configuration interaction calculations. The extent of spin-orbit coupling, brought about by the relativistic effect, increases steadily in the order N < P < As < Sb < Bi such that the "closed-shell" state is more stable than the "open-shell" state for Bi2(2-), while the opposite is the case for N2(2-), P2(2-), As2(2-), and Sb2(2-). The nature of the electronic excitations of Bi2(2-) was assigned and discussed from the viewpoint of molecular orbitals in the absence of spin-orbit coupling.
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Affiliation(s)
- Dadi Dai
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA
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van Wüllen C. Relativistic Density Functional Calculations on Small Molecules. THEORETICAL AND COMPUTATIONAL CHEMISTRY 2004. [DOI: 10.1016/s1380-7323(04)80037-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Peterson KA. Systematically convergent basis sets with relativistic pseudopotentials. I. Correlation consistent basis sets for the post-d group 13–15 elements. J Chem Phys 2003. [DOI: 10.1063/1.1622923] [Citation(s) in RCA: 780] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Liu W, van Wüllen C, Wang F, Li L. Spectroscopic constants of MH and M2 (M=Tl, E113, Bi, E115): Direct comparisons of four- and two-component approaches in the framework of relativistic density functional theory. J Chem Phys 2002. [DOI: 10.1063/1.1446026] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Franklin RE, Perram GP. Laser Excitation Spectra and Franck-Condon Factors for Bi2 X1Sigma+g --> A(0(+)u). JOURNAL OF MOLECULAR SPECTROSCOPY 1999; 194:1-7. [PMID: 9986768 DOI: 10.1006/jmsp.1998.7769] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Laser excitation spectra of the lowest vibrational levels, v" = 2-5 and v' = 0-4, for the Bi2 X1Sigma+g --> A(0(+)u) system have been recorded for a wide range of rotational levels, 0 < J < 211, at Doppler-limited resolution of 0.013 cm-1. New rotational term values and spectroscopic constants are reported, improving the accuracy of predicted line positions for high rotational levels by as much as 0.8 cm-1. In addition, Franck-Condon factors are computed and compared with experimental observations from CW laser-induced fluorescence spectra.
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Affiliation(s)
- RE Franklin
- Department of Engineering Physics, Air Force Institute of Technology, 2950 P Street, Wright-Patterson Air Force Base, Ohio, 45433-7765
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Manna B, Das KK. Ab Initio Based Configuration Interaction Calculations on the Low-Lying Electronic States of GaAs. J Phys Chem A 1998. [DOI: 10.1021/jp981902d] [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)
- Biswabrata Manna
- Department of Chemistry, Physical Chemistry Section, Jadavpur University, Calcutta 700 032, India
| | - Kalyan Kumar Das
- Department of Chemistry, Physical Chemistry Section, Jadavpur University, Calcutta 700 032, India
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Wildman SA, DiLabio GA, Christiansen PA. Accurate relativistic effective potentials for the sixth-row main group elements. J Chem Phys 1997. [DOI: 10.1063/1.475301] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Alekseyev AB, Liebermann HP, Hirsch G, Buenker RJ. Relativistic configuration interaction calculations of the potential curves and radiative lifetimes of the low-lying states of bismuth nitride. Chem Phys 1997. [DOI: 10.1016/s0301-0104(97)00172-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Khandogin Y, Alekseyev AB, Liebermann HP, Hirsch G, Buenker RJ. Ab initio Relativistic CI Calculations of the Spectroscopic Constants and Transition Probabilities for the Low-Lying States of the BiOH/HBiO Isomers. JOURNAL OF MOLECULAR SPECTROSCOPY 1997; 186:22-33. [PMID: 9417947 DOI: 10.1006/jmsp.1997.7423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Spin-orbit MRD-CI calculations have been carried out for the potential energy surfaces of the seven lowest-lying electronic states of the BiOH molecule by employing relativistic effective core potentials. The HBiO isomer is found to be 4020 cm-1 less stable because of its inability to form multiple Bi-O bands. A bent 3A" BiOH ground state is predicted, which is split into all three of its components by spin-orbit coupling. The calculated X2A"-X1A' splitting is computed to be 5217 cm-1, but the corresponding X3-X2 value is only 29 cm-1. Fink et al. have observed spectral bands which appear with a Te value of 6200 cm-1 which are likely caused by BiOH. Since calculations at the same level for BiF underestimate the observed X2-X1 spin-orbit splitting by 650 cm-1, it appears that the present calculations are consistent with this experimental assignment. A vibrational progression with a 500 cm-1 frequency is also observed and this result fits in well with the computed Bi-O stretch omegae value of 527 cm-1. The calculations also find a relatively large 1Delta splitting (600 cm-1) because of the bent BiOH geometry, with comparatively strong transitions to the X1A' ground state, and it is suggested that the experimental BiOH assignment can be confirmed on this basis. Much stronger transitions to the 1Delta component should also be observed in emission in the 10 000 cm-1 range. Copyright 1997 Academic Press. Copyright 1997Academic Press
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Affiliation(s)
- Y Khandogin
- Fachbereich 9-Theoretische Chemie, Bergische Universitat-Gesamthochschule Wuppertal, Gaussstrasse 20, Wuppertal, D-42097, Germany
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van Lenthe E, Snijders JG, Baerends EJ. The zero‐order regular approximation for relativistic effects: The effect of spin–orbit coupling in closed shell molecules. J Chem Phys 1996. [DOI: 10.1063/1.472460] [Citation(s) in RCA: 1282] [Impact Index Per Article: 45.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Alekseyev AB, Liebermann HP, Buenker RJ, Hirsch G. Theoretical study of the low-energy BiN spectrum. Chem Phys Lett 1996. [DOI: 10.1016/0009-2614(96)00524-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Alekseyev AB, Liebermann H, Buenker RJ, Hirsch G. Spin–orbit configuration interaction study of potential energy curves and transition probabilities of the mercury hydride molecule and tests of relativistic effective core potentials for Hg, Hg+, and Hg2+. J Chem Phys 1996. [DOI: 10.1063/1.471162] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Barrow R, Taher F, D'incan J, Effantin C, Ross A, Topouzkhanian A, Wannous G, Vergès J. Electronic states of Bi2. Mol Phys 1996. [DOI: 10.1080/00268979600100501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Alekseyev AB, Das KK, Liebermann HP, Buenker RJ, Hirsch G. Ab initio CI study of the electronic spectrum of bismuth iodide employing relativistic effective core potentials. Chem Phys 1995. [DOI: 10.1016/0301-0104(95)00180-v] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Das KK, Liebermann H, Hirsch G, Buenker RJ. Use of relativistic effective core potentials in calculating the electronic spectrum of the antimony dimer. J Chem Phys 1995. [DOI: 10.1063/1.468838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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