Dimers of cyclic carbonates: chirality recognition in battery solvents and energy storage

Dimers of cyclic carbonates: chirality recognition in battery solvents and energy storage
Kollipost, F.; Hesse, S.; Lee, J. J. & Suhm, M. A.  (2011) 
Physical Chemistry, Chemical Physics13(31) pp. 14176-14182.​

Authors
Kollipost, Franz; Hesse, Susanne; Lee, Juhyon J.; Suhm, Martin A. 
Issue Date
2011
Type
Journal Article
Publisher
Royal Soc Chemistry
Journal
Physical Chemistry, Chemical Physics 
Organization
Institut für Physikalische Chemie 
ISSN
1463-9076
Abstract
Dimers of ethylene carbonate and propylene carbonate are created in supersonic jet expansions and characterized by FTIR spectroscopy. Fermi resonances are switched on and off by dimerization. There is a unique centrosymmetric dimer of ethylene carbonate in a pronounced case of complementary chirality synchronization, contributing to its energy storage capacity at melting. Two chiral propylene carbonate molecules combine in more intricate ways. If they have the same handedness, one of them is forced into an axial conformation and the binding partner stays in the more stable equatorial structure. If they have opposite handedness, centrosymmetric dimers of either axial or equatorial conformations are formed. This suggests the usefulness of chirality control in elucidating ionic transport mechanisms in battery solvents and asymmetric catalysis in such solvents.
Publication of Göttingen University
Yes
Sponsor
Funder: DFG [782]; Fonds der Chemischen Industrie
c1cp21460h_Kollipost.pdf2.56 MBAdobe PDF

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