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The Fluid‐Mosaic Model, Homeoviscous Adaptation, and Ionic Liquids: Dramatic Lowering of the Melting Point by Side‐Chain Unsaturation
Author(s) -
Murray Samuel M.,
O'Brien Richard A.,
Mattson Kaila M.,
Ceccarelli Christopher,
Sykora Richard E.,
West Kevin N.,
Davis James H.
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200906169
Subject(s) - alkyl , degree of unsaturation , nanoscopic scale , ionic liquid , adaptation (eye) , long chain , ionic bonding , chemical physics , chemistry , materials science , chemical engineering , nanotechnology , ion , polymer chemistry , organic chemistry , polymer science , physics , optics , engineering , catalysis
Defying conventional wisdom : Ionic liquids (ILs) with long, unsaturated alkyl appendages (see top structure) defy established trends that link long ion‐bound alkyl groups to higher melting points. The new ILs are also less viscous than a saturated standard (see bottom structure) at the same temperature. These features parallel those that underpin homeoviscous adaptation in certain organisms and are indirectly supportive of a fluid‐mosaic‐like nanoscale character.