Supramolecular control of valence-tautomeric equilibrium on nanometer-scale gold clusters.
نویسندگان
چکیده
This communication describes the preparation and characterization of a valence tautomer complex covalently attached to gold nanoparticles. Variable-temperature IR spectroscopy is used to determine the equilibrium thermodynamic parameters for the valence tautomerization. These results are compared with a nonsurface combined valence tautomer complex. The results show that surface confinement attenuates both DeltaH degrees and DeltaS degrees . We attribute these changes to a reduced accessible molecular surface area.
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عنوان ژورنال:
- Journal of the American Chemical Society
دوره 127 15 شماره
صفحات -
تاریخ انتشار 2005