Energy landscape of a hydrogen-bonded non-degenerate molecular shuttle.
In rotaxane 1, two co-conformations are populated in CDCl(3) at temperatures between 250 and 330 K. The thermodynamic parameters show strong enthalpy-entropy compensation, and a non-negligible heat capacity difference between the two forms.
Günbaş
Duygu Deniz
DD
van 't Hoff Institute for Molecular Sciences, Nieuwe Achtergracht 129, 1018 WS, Amsterdam, The Netherlands.
Zalewski
Leszek
L
Brouwer
Albert M
AM
D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D043862:Rotaxanes / Q000737:chemistry; D013816:Thermodynamics
D043862:Rotaxanes