Abstract
We present a computational investigation of the photodetachment (PD) dynamics of C2H− in its ground, electronic 1Σ state, cooled in an ion trap with He as a buffer gas. Our analysis employs a range of PD rates from quantum dynamics, selective choices of the anion’s initial rotational state populations as the laser is switched on, and different operational trap conditions. Our results show that a variety of outcomes for the initial state-dependent PD process is possible by selecting different initial conditions in the cold trap, the latter generating a dynamical interplay between the anion’s populations of rotational states, induced by the buffer gas, and the chosen laser frequency and laser power. Specific parameter selections during the PD process will be shown to cause different abundances of the rotational states of the anion in the trap.
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References
H. Ehrhardt, L.A. Morgan, Electron Collisions with Molecules, Clusters and Surfaces (Plenum, New York, 1994)
H. Massey, Negative Ions (Cambridge University Press, Cambridge, 1976)
A. Grill, Cold Plasmas in Materials Fabrication (IEEE Press, New York, 1994)
K.M. Ervin, W.C. Lineberger, Advances in Gas Phase Ion Chemistry (JAI, Greenwhich, 1992)
D. Offenberg, C. Wellers, C.B. Zhang, S. Schiller, J. Phys. B: At. Mol. Opt. Phys. 42, 035101 (2009)
R. Wester, J. Phys. B: At. Mol. Opt. Phys. 42, 154001 (2009)
D. Hauser, S. Lee, F. Carelli, S. Spieler, O. Lakhmanskaya, E.S. Endres, S.S. Kumar, F. Gianturco, R. Wester, Nat. Phys. 11, 467 (2015)
L. González-Sánchez, F.A. Gianturco, F. Carelli, R. Wester, New J. Phys. 17, 123003 (2015)
O. Lakhmanskaya, M. Simpson, S. Murauer, V. Kokoouline, R. Wester, J. Chem. Phys. 149, 104302 (2018)
E.P. Wigner, Phys. Rev. 73, 1002 (1948)
P. Lin, R.R. Lucchese, J. Chem. Phys. 114, 9350 (2001)
P.G. Wenthold, W.C. Linerberger, Acc. Chem. Res. 32, 597 (1999)
D.M. Neumark, Acc. Chem. Res. 26, 33 (1993)
F. Dumouchel, A. Spielfiedel, M. Senent, N. Feautrier, Chem. Phys. Lett. 533, 6 (2012)
F.A. Gianturco, L. González-Sánchez, B.P. Mant, R. Wester, J. Chem. Phys. 151, 144304 (2019)
X. Huang, T.J. Lee, J. Phys. Chem. 131, 104301 (2009)
U. Fano, R.P. Rau, Atomic Collisions and Spectra (Academic Press Inc, 1986)
P.C. Engelking, Phys. Rev. A 26, 740 (1982)
J. Zhou, E. Gerand, D.M. Neumark, J. Chem. Phys. 127, 114313 (2007)
M. Simpson, M. Nötzold, T. Michaelsen, B. Bastian, J. Meyer, R. Wild, F.A. Gianturco, M. Milovanovic, V. Kokoouline, R. Wester, In preparation, (2020)
F.A. Gianturco, O.Y. Lakhmanskaya, M. Hernández Vera, R. Yurtsever, R. Wester, Faraday Discuss. 212, 117 (2018)
S. Brünken, C.A. Gottlieb, H. Gupta, M.C. McCarthy, P. Thaddeus, Astron. Astrophys. 464, L33 (2007)
R.J. Saykally, L. Veseth, K.M. Evenson, J. Chem. Phys. 80, 2247 (1984)
D. López-Durán, E. Bodo, F.A. Gianturco, Comput. Phys. Commun. 179, 821 (2008)
M. Hernández Vera, F.A. Gianturco, R. Wester, H. da Silva Jr., O. Dulieu, S. Schiller, J. Chem. Phys. 146, 124310 (2017)
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Contribution to the Topical Issue “Atomic Cluster Collisions (2019)”, edited by Alexey Verkhovtsev, Pablo de Vera, Nigel J. Mason, Andrey V. Solov’yov.
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Mant, B.P., Nötzold, M., González-Sánchez, L. et al. Photodetachment in cold ion traps. Eur. Phys. J. D 74, 134 (2020). https://doi.org/10.1140/epjd/e2020-10043-6
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DOI: https://doi.org/10.1140/epjd/e2020-10043-6