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Title:CHIRALITY ASPECTS IN THE DIMERIZATION OF VICINAL DIOLS
Author(s):Hartwig, Beppo
Contributor(s):Suhm, Martin A.
Subject(s):Mini-symposium: Non-covalent Interactions
Abstract:1,2-Ethanediol has been shown by FTIR and Raman spectroscopy in supersonic jets to dimerize preferentially in an $S_4$-symmetric structure with a cyclic pattern of four strained hydrogen bonds\footnote{F. Kollipost, K. E. Otto, M. A. Suhm, \textit{Angew. Chem.} \textbf{2016}, 128, 4667.}. This forces the two monomers into a heterochiral OCCO helicity. The equally frequent homochiral encounters lead to a rich variety of nearly isoenergetic, but much less stable chain topologies with only three hydrogen bonds. The latter had remained elusive in a previous study but$^a$ are now identified and energetically modulated by chemically freezing the OCCO helicity of the monomers. This is achieved by moving to cyclic diols of different ring sizes. They are explored computationally and in several cases also spectroscopically, exploiting the established complementarities between Raman and IR spectroscopy for hydrogen bonded systems\footnote{Thomas Forsting, Hannes C. Gottschalk, Beppo Hartwig, Michel Mons, Martin A. Suhm, \textit{PCCP}, \textbf{2017}, 19, 10727}.
Issue Date:2019-06-17
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Type:Text
Language:English
URI:http://hdl.handle.net/2142/104583
DOI:10.15278/isms.2019.MH05
Rights Information:Copyright 2019 Beppo Hartwig
Date Available in IDEALS:2019-07-15
2020-01-25


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