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Sold S, Mummaneni BC, Michenfelder NC, Peng Y, Powell AK, Unterreiner A, Lefkidis G, Hübner W. Front Cover: Experimental and Theoretical Study of the Ultrafast Dynamics of a Ni
2
Dy
2
‐Compound in DMF After UV/Vis Photoexcitation (ChemistryOpen 5/2022). Chemistry 2022. [DOI: 10.1002/open.202200087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S. Sold
- Department of Physics and Research Center OPTIMAS Technische Universität Kaiserslautern P.O. Box 3049 67653 Kaiserslautern Germany
| | - B. C. Mummaneni
- Department of Physics and Research Center OPTIMAS Technische Universität Kaiserslautern P.O. Box 3049 67653 Kaiserslautern Germany
| | - N. C. Michenfelder
- Institute of Physical Chemistry Karlsruhe Institute of Technology Fritz-Haber-Weg 2 76131 Karlsruhe Germany
| | - Y. Peng
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstrasse 15 76131 Karlsruhe Germany
- Institute of Nanotechnology Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - A. K. Powell
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology Engesserstrasse 15 76131 Karlsruhe Germany
- Institute of Nanotechnology Karlsruhe Institute of Technology Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - A.‐N. Unterreiner
- Institute of Physical Chemistry Karlsruhe Institute of Technology Fritz-Haber-Weg 2 76131 Karlsruhe Germany
| | - G. Lefkidis
- Department of Physics and Research Center OPTIMAS Technische Universität Kaiserslautern P.O. Box 3049 67653 Kaiserslautern Germany
- School of Mechanics Civil Engineering and Architecture Northwestern Polytechnical University Xi'an 710072 China
| | - W. Hübner
- Department of Physics and Research Center OPTIMAS Technische Universität Kaiserslautern P.O. Box 3049 67653 Kaiserslautern Germany
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Sold S, Mummaneni BC, Michenfelder NC, Peng Y, Powell AK, Unterreiner AN, Lefkidis G, Hübner W. Experimental and Theoretical Study of the Ultrafast Dynamics of a Ni 2 Dy 2 -Compound in DMF After UV/Vis Photoexcitation. ChemistryOpen 2021; 11:e202100153. [PMID: 34931474 PMCID: PMC9059312 DOI: 10.1002/open.202100153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 11/04/2021] [Indexed: 01/30/2023] Open
Abstract
We present a combined experimental and theoretical study of the ultrafast transient absorption spectroscopy results of a {Ni2Dy2}‐compound in DMF, which can be considered as a prototypic molecule for single molecule magnets. We apply state‐of‐the‐art ab initio quantum chemistry to quantitatively describe the optical properties of an inorganic complex system comprising ten atoms to form the chromophoric unit, which is further stabilized by surrounding ligands. Two different basis sets are used for the calculations to specifically identify two dominant peaks in the ground state. Furthermore, we theoretically propagate the compound's correlated many‐body wavefunction under the influence of a laser pulse as well as relaxation processes and compare against the time‐resolved absorption spectra. The experimental data can be described with a time constant of several hundreds of femtoseconds attributed to vibrational relaxation and trapping into states localized within the band gap. A second time constant is ascribed to the excited state while trap states show lifetimes on a longer timescale. The theoretical propagation is performed with the density‐matrix formalism and the Lindblad superoperator, which couples the system to a thermal bath, allowing us to extract relaxation times from first principles.
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Affiliation(s)
- S Sold
- Department of Physics and Research Center OPTIMAS, Technische Universität Kaiserslautern, P.O. Box 3049, 67653, Kaiserslautern, Germany
| | - B C Mummaneni
- Department of Physics and Research Center OPTIMAS, Technische Universität Kaiserslautern, P.O. Box 3049, 67653, Kaiserslautern, Germany
| | - N C Michenfelder
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - Y Peng
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131, Karlsruhe, Germany.,Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - A K Powell
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology, Engesserstrasse 15, 76131, Karlsruhe, Germany.,Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - A-N Unterreiner
- Institute of Physical Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 2, 76131, Karlsruhe, Germany
| | - G Lefkidis
- Department of Physics and Research Center OPTIMAS, Technische Universität Kaiserslautern, P.O. Box 3049, 67653, Kaiserslautern, Germany.,School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi'an, 710072, China
| | - W Hübner
- Department of Physics and Research Center OPTIMAS, Technische Universität Kaiserslautern, P.O. Box 3049, 67653, Kaiserslautern, Germany
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