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 Title: Infrared Spectra And Calculated Binding Energies Of Γ-butyrolactone Dimers And Trimers Author(s): Willis, Eric Contributor(s): Baumann, Chris Subject(s): Matrix isolation (and droplets) Abstract: Infrared spectra for matrix-isolated $\gamma$-butyrolactone and $\gamma$-butyrolactone-\textit{d$_6$} were obtained. The carbonyl stretching mode occurs at 1803 cm$^{-1}$ for the monomer species, 1786 cm$^{-1}$ for the dimer species, and 1774 cm$^{-1}$ for the trimer species (1797, 1789 and 1770 cm$^{-1}$ for the deuterated isotopomer.) Vibrational frequencies calculated using density functional theory are in agreement with the experimental values. Density functional theory was used to calculate the structures and binding energies of $\gamma$-butyrolactone dimers and trimers. Binding energies of 55-58 kJ mol$^{-1}$ are predicted for the dimer structures. Optimized geometries for stacked and ring trimer structures have been calculated, with predicted binding energies of up to 68 kJ mol$^{-1}$. Issue Date: 2014-06-19 Publisher: International Symposium on Molecular Spectroscopy Citation Info: Willis, E.; Baumann, C. INFRARED SPECTRA AND CALCULATED BINDING ENERGIES OF γ-BUTYROLACTONE DIMERS AND TRIMERS. Proceedings of the International Symposium on Molecular Spectroscopy, Urbana, IL, June 16-21, 2014. DOI: 10.15278/isms.2014.RI07 Genre: CONFERENCE PAPER/PRESENTATION Type: Text Language: English URI: http://hdl.handle.net/2142/51061 DOI: https://doi.org/10.15278/isms.2014.RI07 Rights Information: Copyright 2014 by the authors. Licensed under a Creative Commons Attribution 4.0 International License. http://creativecommons.org/licenses/by/4.0/ Date Available in IDEALS: 2014-09-172015-04-14
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