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Intermolecular Lond...
Intermolecular London Dispersion Interactions of Azobenzene Switches for Tuning Molecular Solar Thermal Energy Storage Systems
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- Kunz, Anne (författare)
- Justus-Liebig-Universität Gießen,Justus Liebig University Giessen
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- Heindl, Andreas H. (författare)
- Justus-Liebig-Universität Gießen,Justus Liebig University Giessen
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- Dreos, Ambra, 1987 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Wang, Zhihang, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Moth-Poulsen, Kasper, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Becker, Jonathan (författare)
- Justus-Liebig-Universität Gießen,Justus Liebig University Giessen
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- Wegner, Hermann A. (författare)
- Justus-Liebig-Universität Gießen,Justus Liebig University Giessen
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(creator_code:org_t)
- 2019-08-12
- 2019
- Engelska.
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Ingår i: ChemPlusChem. - : Wiley. - 2192-6506. ; 84:8, s. 1145-1148
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://doi.org/10.1...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The performance of molecular solar thermal energy storage systems (MOST) depends amongst others on the amount of energy stored. Azobenzenes have been investigated as high-potential materials for MOST applications. In the present study it could be shown that intermolecular attractive London dispersion interactions stabilize the (E)-isomer in bisazobenzene that is linked by different alkyl bridges. Differential scanning calorimetry (DSC) measurements revealed, that this interaction leads to an increased storage energy per azo-unit of more than 3 kcal/mol compared to the parent azobenzene. The origin of this effect has been supported by computation as well as X-ray analysis. In the solid state structure attractive London dispersion interactions between the C−H of the alkyl bridge and the π-system of the azobenzene could be clearly assigned. This concept will be highly useful in designing more effective MOST systems in the future.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Övrig annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Other Engineering and Technologies not elsewhere specified (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Naturresursteknik -- Energisystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Engineering -- Energy Systems (hsv//eng)
Nyckelord
- noncovalent interactions
- azobenzene
- molecular switches
- thermal energy storage
- London dispersions
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- ref (ämneskategori)
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