Pagodane—Solution and Solid-State Vibrational Spectra

In the present study, we report infrared and Raman spectra in both solution and the solid state, together with a state-of-the art inelastic neutron scattering spectrum, of the unusual molecule pagodane. Periodic DFT calculations have enabled a complete assignment of all the modes. The isolated molec...

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Main Authors: Stewart F. Parker, Hannah E. Mason, Campbell T. Wilson, Adam J. Jackson
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Physchem
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Online Access:https://www.mdpi.com/2673-7167/4/4/36
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author Stewart F. Parker
Hannah E. Mason
Campbell T. Wilson
Adam J. Jackson
author_facet Stewart F. Parker
Hannah E. Mason
Campbell T. Wilson
Adam J. Jackson
author_sort Stewart F. Parker
collection DOAJ
description In the present study, we report infrared and Raman spectra in both solution and the solid state, together with a state-of-the art inelastic neutron scattering spectrum, of the unusual molecule pagodane. Periodic DFT calculations have enabled a complete assignment of all the modes. The isolated molecule has <i>D</i><sub>2h</sub> symmetry, which is reduced to <i>C</i><sub>i</sub> in the solid state. However, the preservation of the centre of symmetry means that the selection rules for infrared and Raman spectroscopy are almost unchanged. The exceptions are the <i>D</i><sub>2h</sub><i>A</i><sub>u</sub> modes that are forbidden in the isolated molecule but become allowed in the solid state. These have been located in the solid-state spectra.
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issn 2673-7167
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publishDate 2024-12-01
publisher MDPI AG
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series Physchem
spelling doaj-art-1bf414a573624deabc1d515e28331f402025-08-20T02:39:41ZengMDPI AGPhyschem2673-71672024-12-014452453510.3390/physchem4040036Pagodane—Solution and Solid-State Vibrational SpectraStewart F. Parker0Hannah E. Mason1Campbell T. Wilson2Adam J. Jackson3ISIS Neutron and Muon Facility, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, UKLeeds Mathematics School, 105, Albion Street, Leeds LS1 5AP, UKAlcester Grammar School, Alcester, Warwickshire B49 5ED, UKScientific Computing Department, STFC Rutherford Appleton Laboratory, Chilton, Oxfordshire OX11 0QX, UKIn the present study, we report infrared and Raman spectra in both solution and the solid state, together with a state-of-the art inelastic neutron scattering spectrum, of the unusual molecule pagodane. Periodic DFT calculations have enabled a complete assignment of all the modes. The isolated molecule has <i>D</i><sub>2h</sub> symmetry, which is reduced to <i>C</i><sub>i</sub> in the solid state. However, the preservation of the centre of symmetry means that the selection rules for infrared and Raman spectroscopy are almost unchanged. The exceptions are the <i>D</i><sub>2h</sub><i>A</i><sub>u</sub> modes that are forbidden in the isolated molecule but become allowed in the solid state. These have been located in the solid-state spectra.https://www.mdpi.com/2673-7167/4/4/36pagodaneinfrared spectroscopyRaman spectroscopyinelastic neutron scatteringdensity functional theory
spellingShingle Stewart F. Parker
Hannah E. Mason
Campbell T. Wilson
Adam J. Jackson
Pagodane—Solution and Solid-State Vibrational Spectra
Physchem
pagodane
infrared spectroscopy
Raman spectroscopy
inelastic neutron scattering
density functional theory
title Pagodane—Solution and Solid-State Vibrational Spectra
title_full Pagodane—Solution and Solid-State Vibrational Spectra
title_fullStr Pagodane—Solution and Solid-State Vibrational Spectra
title_full_unstemmed Pagodane—Solution and Solid-State Vibrational Spectra
title_short Pagodane—Solution and Solid-State Vibrational Spectra
title_sort pagodane solution and solid state vibrational spectra
topic pagodane
infrared spectroscopy
Raman spectroscopy
inelastic neutron scattering
density functional theory
url https://www.mdpi.com/2673-7167/4/4/36
work_keys_str_mv AT stewartfparker pagodanesolutionandsolidstatevibrationalspectra
AT hannahemason pagodanesolutionandsolidstatevibrationalspectra
AT campbelltwilson pagodanesolutionandsolidstatevibrationalspectra
AT adamjjackson pagodanesolutionandsolidstatevibrationalspectra