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O’Connor GD, Sanelli JA, Dryza V, Bieske EJ, Schmidt TW. Electronic spectrum of 9-methylanthracenium radical cation. J Chem Phys 2016; 144:154303. [DOI: 10.1063/1.4945109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | - Julian A. Sanelli
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - Vik Dryza
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
| | - Evan J. Bieske
- School of Chemistry, The University of Melbourne, Victoria 3010, Australia
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2
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Krechkivska O, Wilcox C, O’Connor GD, Nauta K, Kable SH, Schmidt TW. Ionization Energies of Three Resonance-Stabilized Radicals: Cyclohexadienyl (dn, n = 0, 1, 6, 7), 1-Phenylpropargyl, and Methylcyclohexadienyl. J Phys Chem A 2014; 118:10252-8. [DOI: 10.1021/jp508985s] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olha Krechkivska
- School
of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Callan Wilcox
- School
of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Gerard D. O’Connor
- School
of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Klaas Nauta
- School
of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Scott H. Kable
- School
of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
| | - Timothy W. Schmidt
- School
of Chemistry, UNSW Sydney, Sydney, New South Wales 2052, Australia
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3
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Patzer A, Schütz M, Jouvet C, Dopfer O. Experimental Observation and Quantum Chemical Characterization of the S1 ← S0 Transition of Protonated Naphthalene–Argon Clusters. J Phys Chem A 2013; 117:9785-93. [DOI: 10.1021/jp312581v] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander Patzer
- Institut für Optik und
Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
| | - Markus Schütz
- Institut für Optik und
Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
| | - Christophe Jouvet
- Laboratoire de Physique des Interactions
Ioniques et Moléculaires
(PIIM/UMR CNRS 7345), Aix Marseille Université, Avenue Escadrille Normandie-Niémen, 13397 Marseille cedex
20, France
| | - Otto Dopfer
- Institut für Optik und
Atomare Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Germany
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4
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Chen HF, Wu YJ. Structure, stability, and vibrational fundamentals of low-lying isomers of. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2012.11.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Bargholz A, Oswald R, Botschwina P. Spectroscopic and thermochemical properties of the c-C6H7 radical: a high-level theoretical study. J Chem Phys 2013; 138:014307. [PMID: 23298041 DOI: 10.1063/1.4773015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
The electronic ground state (X(2)B(1)) of the cyclohexadienyl radical (c-C(6)H(7)) has been studied by explicitly correlated coupled cluster theory at the RCCSD(T)-F12x (x = a, b) level, partly in combination with the double-hybrid density functional method B2PLYP. An accurate equilibrium structure has been established and the ground-state rotational constants are predicted to be A(0) = 5347.3 MHz, B(0) = 5249.7 MHz, and C(0) = 2692.5 MHz. The calculated vibrational wavenumbers agree well with the recent p-H(2) matrix IR data [M. Bahou, Y.-J. Wu, and Y.-P. Lee, J. Chem. Phys. 136, 154304 (2012)] and several predictions have been made. A low value of 6.803 ± 0.005 eV is predicted for the adiabatic ionization energy of c-C(6)H(7). Owing to a moderately large change in the equilibrium structure upon ionization, the first band of the photoelectron spectrum is dominated by the adiabatic peak (100%) and only the peaks corresponding to excitation of the two lowest totally symmetric vibrations (ν(12) and ν(11)) by one vibrational quantum have relative intensities of more than 15%. The C(6)H(6)-H dissociation energy is calculated to be D(0) = 85.7 kJ mol(-1), with an estimated error of ~2 kJ mol(-1).
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Affiliation(s)
- Arne Bargholz
- Institut für Physikalische Chemie, Universität Göttingen, Tammannstraße 6, 37077 Göttingen, Germany
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Affiliation(s)
- Michael A. Duncan
- Department
of Chemistry, University of Georgia, Athens, Georgia 30602, United
States
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7
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Mosley JD, Ricks AM, Schleyer PVR, Wu JI, Duncan MA. IR Spectroscopy of α- and β-Protonated Pyrrole via Argon Complex Photodissociation. J Phys Chem A 2012; 116:9689-95. [DOI: 10.1021/jp307631n] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. D. Mosley
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
| | - A. M. Ricks
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
| | - P. v. R. Schleyer
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
| | - J. I. Wu
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
| | - M. A. Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
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Bandyopadhyay B, Cheng TC, Wheeler SE, Duncan MA. Vibrational Spectroscopy and Theory of the Protonated Benzene Dimer and Trimer. J Phys Chem A 2012; 116:7065-73. [DOI: 10.1021/jp304091h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- B. Bandyopadhyay
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
| | - T. C. Cheng
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
| | - S. E. Wheeler
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - M. A. Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556,
United States
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9
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Botschwina P, Oswald R. Complexes of type C6H7+·L (L = N2 and CO2) studied by explicitly correlated coupled cluster theory. J Chem Phys 2012; 136:204301. [DOI: 10.1063/1.4714347] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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10
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Bahou M, Wu YJ, Lee YP. A new method for investigating infrared spectra of protonated benzene (C6H7+) and cyclohexadienyl radical (c-C6H7) using para-hydrogen. J Chem Phys 2012; 136:154304. [DOI: 10.1063/1.3703502] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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11
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Botschwina P, Oswald R. Fulvenallenyl cation (C7H5(+)) and its complex with an argon atom: results of high-level quantum-chemical calculations. J Phys Chem A 2012; 116:3448-53. [PMID: 22380571 DOI: 10.1021/jp212376j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The fulvenallenyl cation (C(7)H(5)(+)) and its complex with an argon atom have been studied by explicitly correlated coupled cluster theory at the CCSD(T)-F12x(x = a, b) level and by the double-hybrid density functional B2PLYP-D. For the free cation, an accurate equilibrium structure has been established and ground-state rotational constants of A(0) = 8116.4 MHz, B(0) = 2004.3 MHz, and C(0) = 1606.9 MHz are predicted. The equilibrium dipole moment is calculated to be μ(e) = 1.305 D, with the positive end of the dipole at the acetylenic hydrogen site. Anharmonic wavenumbers of C(7)H(5)(+) were obtained by combination of harmonic CCSD(T*)-F12a values and B2PLYP-D anharmonic contributions. The most intense vibration is the pseudoantisymmetric CC stretching vibration at 2083 cm(-1). The potential energy surface of the complex C(7)H(5)(+)·Ar is characterized by two energy minima of C(s) symmetry which are separated by a very low energy barrier. The dissociation energy of the most stable structure is predicted to be D(0) = 530 ± 30 cm(-1).
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Affiliation(s)
- Peter Botschwina
- Institut für Physikalische Chemie, Universität Göttingen, Germany.
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