Year 2005, Month 1 (Section Full Articles, Page 146)
ESR probe study of acid sites on the silica surface
modified by organotin compounds
A. A. Kudrinsky, P. G. Mingalyov,* A. V. Fionov, and G. V. Lisichkin
Brönsted acid sites formed due to the interaction of coordinately unsaturated tin atoms
with water on the silica surface modified by organotin compounds were found and studied
using an ESR spin probe technique. The half-life period of a probe at room temperature can
serve as an additional characteristic of the acidity of the surface.
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