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Density Functional Theory Study of the Multimode Jahn-Teller Effect - Ground State Distortion of Benzene Cation

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2012
zlatar_jtch2.pdf (1.314Mb)
Authors
Zlatar, Matija
Brog, Jean-Pierre
Tschannen, Alain
Gruden-Pavlović, Maja
Daul, Claude
Book part (Accepted Version)
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Abstract
The multideterminental-DFT approach performed to analyze Jahn-Teller (JT) active molecules is described. Extension of this method for the analysis of the adiabatic potential energy surfaces and the multimode JT effect is presented. Conceptually a simple model, based on the analogy between the JT distortion and reaction coordinates gives further information about microscopic origin of the JT effect. Within the harmonic approximation the JT distortion can be expressed as a linear combination of all totally symmetric normal modes in the low symmetry minimum energy conformation, which allows calculating the Intrinsic Distortion Path, IDP, exactly from the high symmetry nuclear configuration to the low symmetry energy minimum. It is possible to quantify the contribution of different normal modes to the distortion, their energy contribution to the total stabilization energy and how their contribution changes along the IDP. It is noteworthy that the results obtained by both multideterminental...-DFT and IDP methods for different classes of JT active molecules are consistent and in agreement with available theoretical and experimental values. As an example, detailed description of the ground state distortion of benzene cation is given.

Source:
Vibronic Interactions and the Jahn-Teller Effect: Theory and Applications, 2012, 23, 25-38
Publisher:
  • Springer, Dordrecht
Projects:
  • Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)
Note:
  • This is the author's version of the accepted, peer-reviewed chapter: Zlatar M., Brog JP., Tschannen A., Gruden-Pavlović M., Daul C. (2011) Density Functional Theory Study of the Multimode Jahn-Teller Effect – Ground State Distortion of Benzene Cation. In: Atanasov M., Daul C., Tregenna-Piggott P. (eds) Vibronic Interactions and the Jahn-Teller Effect. Progress in Theoretical Chemistry and Physics, vol 23. Springer, Dordrecht. Final version of the chapter is available at: https://doi.org/10.1007/978-94-007-2384-9_2
  • http://cer.ihtm.bg.ac.rs/handle/123456789/1032

DOI: 10.1007/978-94-007-2384-9_2

ISBN: 978-94-007-2384-9

ISSN: 1567-7354

WoS: 000301335800002

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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1032
http://cer.ihtm.bg.ac.rs/handle/123456789/2666
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