Simulation of the photodetachment spectrum of HHfO- using coupled-cluster calculations
Simulation of the photodetachment spectrum of HHfO- using coupled-cluster calculations
The photodetachment spectrum of HHfO? was simulated using restricted-spin coupled-cluster single-double plus perturbative triple {RCCSD(T)} calculations performed on the ground electronic states of HHfO and HHfO?, employing basis sets of up to quintuple-zeta quality. The computed RCCSD(T) electron affinity of 1.67 ± 0.02 eV at the complete basis set limit, including Hf 5s25p6 core correlation and zero-point energy corrections, agrees well with the experimental value of 1.70 ± 0.05 eV from a recent photodetachment study [X. Li et al., J. Chem. Phys. 136, 154306 (2012)]. For the simulation, Franck-Condon factors were computed which included allowances for anharmonicity and Duschinsky rotation. Comparisons between simulated and experimental spectra confirm the assignments of the molecular carrier and electronic states involved but suggest that the experimental vibrational structure has suffered from poor signal-to-noise ratio. An alternative assignment of the vibrational structure to that suggested in the experimental work is presented.
1-5
Mok, Daniel K.W.
49a4e516-0e71-4f59-a3ec-bd607b47ef33
Dyke, John
46393b45-6694-46f3-af20-d7369d26199f
Lee, Edmond P.F.
f47c6d5d-2d1f-4f03-a3ff-03658812d80b
28 December 2016
Mok, Daniel K.W.
49a4e516-0e71-4f59-a3ec-bd607b47ef33
Dyke, John
46393b45-6694-46f3-af20-d7369d26199f
Lee, Edmond P.F.
f47c6d5d-2d1f-4f03-a3ff-03658812d80b
Mok, Daniel K.W., Dyke, John and Lee, Edmond P.F.
(2016)
Simulation of the photodetachment spectrum of HHfO- using coupled-cluster calculations.
The Journal of Chemical Physics, 145 (24), .
(doi:10.1063/1.4972816).
Abstract
The photodetachment spectrum of HHfO? was simulated using restricted-spin coupled-cluster single-double plus perturbative triple {RCCSD(T)} calculations performed on the ground electronic states of HHfO and HHfO?, employing basis sets of up to quintuple-zeta quality. The computed RCCSD(T) electron affinity of 1.67 ± 0.02 eV at the complete basis set limit, including Hf 5s25p6 core correlation and zero-point energy corrections, agrees well with the experimental value of 1.70 ± 0.05 eV from a recent photodetachment study [X. Li et al., J. Chem. Phys. 136, 154306 (2012)]. For the simulation, Franck-Condon factors were computed which included allowances for anharmonicity and Duschinsky rotation. Comparisons between simulated and experimental spectra confirm the assignments of the molecular carrier and electronic states involved but suggest that the experimental vibrational structure has suffered from poor signal-to-noise ratio. An alternative assignment of the vibrational structure to that suggested in the experimental work is presented.
Text
HHfO_resubmission.pdf
- Accepted Manuscript
More information
Accepted/In Press date: 8 December 2016
e-pub ahead of print date: 22 December 2016
Published date: 28 December 2016
Organisations:
Faculty of Natural and Environmental Sciences
Identifiers
Local EPrints ID: 405579
URI: http://eprints.soton.ac.uk/id/eprint/405579
ISSN: 0021-9606
PURE UUID: e31e548f-5f64-4f70-a47b-21ef322147df
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Date deposited: 08 Feb 2017 10:01
Last modified: 16 Mar 2024 02:36
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Author:
Daniel K.W. Mok
Author:
Edmond P.F. Lee
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