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Dynamical Effects of Solvation on Norbornadiene/Quadricyclane Systems
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- Hillers-Bendtsen, Andreas Erbs (author)
- Univ Copenhagen, Dept Chem, DK-2100 Copenhagen O, Denmark.
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- Todarwal, Yogesh (author)
- KTH,Teoretisk kemi och biologi
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- Norman, Patrick (author)
- KTH,Teoretisk kemi och biologi
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- Univ Copenhagen, Dept Chem, DK-2100 Copenhagen O, Denmark Teoretisk kemi och biologi (creator_code:org_t)
- American Chemical Society (ACS), 2024
- 2024
- English.
- In: Journal of Physical Chemistry A. - : American Chemical Society (ACS). - 1089-5639 .- 1520-5215. ; 128:13, s. 2602-2610
- Journal article (peer-reviewed)
Abstract
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- Molecules that can undergo reversible chemical transformations following the absorption of light, the so-called molecular photoswitches, have attracted increasing attention in technologies, such as solar energy storage. Here, the optical and thermochemical properties of the photoswitch are central to its applicability, and these properties are influenced significantly by solvation. We investigate the effects of solvation on two norbornadiene/quadricyclane photoswitches. Emphasis is put on the energy difference between the two isomers and the optical absorption as these are central to the application of the systems in solar energy storage. Using a combined classical molecular dynamics and quantum mechanical/molecular mechanical computational scheme, we showcase that the dynamic effects of solvation are important. In particular, it is found that standard implicit solvation models generally underestimate the energy difference between the two isomers and overestimate the strength of the absorption, while the explicit solvation spectra are also less red-shifted than those obtained using implicit solvation models. We also find that the absorption spectra of the two systems are strongly correlated with specific dihedral angles. Altogether, this highlights the importance of including the dynamic effects of solvation.
Subject headings
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
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- art (subject category)
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