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Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets
We report the first helium-tagged electronic spectra of cationic adamantane clusters, along with its singly, doubly, and triply dehydrogenated analogues embedded in helium droplets. Absorption spectra were measured by recording the evaporation of helium atoms as a function of laser wavelength in the...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9533311/ https://www.ncbi.nlm.nih.gov/pubmed/36148794 http://dx.doi.org/10.1039/d2cp03523e |
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author | Kappe, Miriam Schiller, Arne Krasnokutski, Serge A. Ončák, Milan Scheier, Paul Cunningham, Ethan M. |
author_facet | Kappe, Miriam Schiller, Arne Krasnokutski, Serge A. Ončák, Milan Scheier, Paul Cunningham, Ethan M. |
author_sort | Kappe, Miriam |
collection | PubMed |
description | We report the first helium-tagged electronic spectra of cationic adamantane clusters, along with its singly, doubly, and triply dehydrogenated analogues embedded in helium droplets. Absorption spectra were measured by recording the evaporation of helium atoms as a function of laser wavelength in the range of 300–2150 nm. Experimental spectra are coupled with simulated spectra obtained from quantum chemical calculations. The spectrum of cationic adamantane agrees with the electronic photodissociation spectrum measured previously, with an additional low-energy absorption at around 1000 nm. The spectra of the dehydrogenated molecules present broad absorptions exclusively in the high-energy region (300–600 nm). For the higher order adamantane dimer and trimer ions, strong absorptions are observed in the low-energy region (900–2150 nm), rationalised by transitions delocalised over two adamantane units. |
format | Online Article Text |
id | pubmed-9533311 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-95333112022-10-31 Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets Kappe, Miriam Schiller, Arne Krasnokutski, Serge A. Ončák, Milan Scheier, Paul Cunningham, Ethan M. Phys Chem Chem Phys Chemistry We report the first helium-tagged electronic spectra of cationic adamantane clusters, along with its singly, doubly, and triply dehydrogenated analogues embedded in helium droplets. Absorption spectra were measured by recording the evaporation of helium atoms as a function of laser wavelength in the range of 300–2150 nm. Experimental spectra are coupled with simulated spectra obtained from quantum chemical calculations. The spectrum of cationic adamantane agrees with the electronic photodissociation spectrum measured previously, with an additional low-energy absorption at around 1000 nm. The spectra of the dehydrogenated molecules present broad absorptions exclusively in the high-energy region (300–600 nm). For the higher order adamantane dimer and trimer ions, strong absorptions are observed in the low-energy region (900–2150 nm), rationalised by transitions delocalised over two adamantane units. The Royal Society of Chemistry 2022-09-16 /pmc/articles/PMC9533311/ /pubmed/36148794 http://dx.doi.org/10.1039/d2cp03523e Text en This journal is © the Owner Societies https://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Chemistry Kappe, Miriam Schiller, Arne Krasnokutski, Serge A. Ončák, Milan Scheier, Paul Cunningham, Ethan M. Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets |
title | Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets |
title_full | Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets |
title_fullStr | Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets |
title_full_unstemmed | Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets |
title_short | Electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets |
title_sort | electronic spectroscopy of cationic adamantane clusters and dehydrogenated adamantane in helium droplets |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9533311/ https://www.ncbi.nlm.nih.gov/pubmed/36148794 http://dx.doi.org/10.1039/d2cp03523e |
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