Ultrafast dynamics of electronically excited diborane radical cation

Verfasser / Beitragende:
[V. Reddy, Samala Reddy, S. Mahapatra]
Ort, Verlag, Jahr:
2015
Enthalten in:
Theoretical Chemistry Accounts, 134/4(2015-04-01), 1-12
Format:
Artikel (online)
ID: 605487901
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024 7 0 |a 10.1007/s00214-015-1632-8  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00214-015-1632-8 
245 0 0 |a Ultrafast dynamics of electronically excited diborane radical cation  |h [Elektronische Daten]  |c [V. Reddy, Samala Reddy, S. Mahapatra] 
520 3 |a Full-dimensional quantum mechanical study is carried out to investigate the vibronic structure and internal conversion dynamics of the energetically low-lying electronic excited states of $$ {\text{B}}_{{\text{2}}} {\text{H}}_{6}^{{ \cdot + }} $$ B 2 H 6 · + . A model diabatic electronic Hamiltonian, within the quadratic vibronic coupling approach comprising of five energetically low-lying electronic states, is developed, and the parameters of the Hamiltonian are estimated by performing extensive ab initioelectronic structure calculations using the equation-of-motion coupled-cluster singles and doubles method. The nuclear dynamics on the constructed diabatic electronic states is studied by employing both time-independent and time-dependent quantum mechanical methods. Theoretically calculated vibronic structure of the electronic states is found to be in excellent accord with the available experimental results. Extremely strong vibronic interactions among the electronic states result highly overlapping and diffuse vibronic bands and complicate the assignment of vibronic progression. Examination of non-radiative internal conversion dynamics revealed very short lifetime ( $$<$$ < 60fs) of the excited electronic states of $$ {\text{B}}_{{\text{2}}} {\text{H}}_{6}^{{ \cdot + }} $$ B 2 H 6 · + . 
540 |a Springer-Verlag Berlin Heidelberg, 2015 
690 7 |a Vibronic coupling  |2 nationallicence 
690 7 |a Ultrafast dynamics  |2 nationallicence 
690 7 |a Spectroscopy  |2 nationallicence 
700 1 |a Reddy  |D V.  |u School of Chemistry, University of Hyderabad, 500 046, Hyderabad, India  |4 aut 
700 1 |a Reddy  |D Samala  |u School of Chemistry, University of Hyderabad, 500 046, Hyderabad, India  |4 aut 
700 1 |a Mahapatra  |D S.  |u School of Chemistry, University of Hyderabad, 500 046, Hyderabad, India  |4 aut 
773 0 |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/4(2015-04-01), 1-12  |x 1432-881X  |q 134:4<1  |1 2015  |2 134  |o 214 
856 4 0 |u https://doi.org/10.1007/s00214-015-1632-8  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00214-015-1632-8  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Reddy  |D V.  |u School of Chemistry, University of Hyderabad, 500 046, Hyderabad, India  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Reddy  |D Samala  |u School of Chemistry, University of Hyderabad, 500 046, Hyderabad, India  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Mahapatra  |D S.  |u School of Chemistry, University of Hyderabad, 500 046, Hyderabad, India  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Theoretical Chemistry Accounts  |d Springer Berlin Heidelberg  |g 134/4(2015-04-01), 1-12  |x 1432-881X  |q 134:4<1  |1 2015  |2 134  |o 214