This work reports non-radiative internal conversion (IC) rate constants obtained for Cun with n = 3, 6, and 9 and H2 on Cu3. The Time-Dependent Density Functional Theory (TDDFT) method was employed with three different functionals in order to investigate the electronic structures and the absorption spectra. The performance of the generalized gradient approximation of Perdew, Burke and Ernzerhof (PBE) and the hybrid B3LYP and PBE0 exchange correlation functionals in combination with the SVP and the def2-TZVP basis sets was examined. TDDFT results were used as input data to compute internal conversion rate constants. For this purpose, we have developed a program package. A description of the theoretical background used in our numerical implementation and the program input file is presented. In view of future applications of this program package in photoinduced catalysis, we present the analysis of the IC rate processes for the photodissociation of H2 on Cu3. These results showed the applicability of the method and the computational program to identify the vibrational modes in transition metal clusters giving rise to the largest IC rate constant due to their interactions with the excited electronic states occurring in the hot-electron induced dissociation phenomena.
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21 March 2015
Research Article|
March 19 2015
Application of vibrational correlation formalism to internal conversion rate: Case study of Cun (n = 3, 6, and 9) and H2/Cu3
Sandro Giuseppe Chiodo;
Sandro Giuseppe Chiodo
Institut Charles Gerhardt Montpellier, CNRS/ENSCM/UM1/UM2
, 8 rue de l’Ecole Normale, 34296 Montpellier Cédex 5, France
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Tzonka Mineva
Tzonka Mineva
a)
Institut Charles Gerhardt Montpellier, CNRS/ENSCM/UM1/UM2
, 8 rue de l’Ecole Normale, 34296 Montpellier Cédex 5, France
Search for other works by this author on:
Sandro Giuseppe Chiodo
Tzonka Mineva
a)
Institut Charles Gerhardt Montpellier, CNRS/ENSCM/UM1/UM2
, 8 rue de l’Ecole Normale, 34296 Montpellier Cédex 5, France
a)
Author to whom correspondence should be addressed. Electronic mail: [email protected]
J. Chem. Phys. 142, 114311 (2015)
Article history
Received:
October 18 2014
Accepted:
March 05 2015
Citation
Sandro Giuseppe Chiodo, Tzonka Mineva; Application of vibrational correlation formalism to internal conversion rate: Case study of Cun (n = 3, 6, and 9) and H2/Cu3. J. Chem. Phys. 21 March 2015; 142 (11): 114311. https://doi.org/10.1063/1.4915127
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