Y. Ohga et al., Dynamic solvent effects in the degenerate isomerization of a hexafluoroacetone anil studied by high-pressure F-19 NMR, Z NATURFO A, 54(6-7), 1999, pp. 417-421
Citations number
21
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES
The rate of the degenerate isomerization of N-hexafluoroisopropylidene-N',N
'-dimethyl-p-phenylenediamine was measured by high-pressure F-19 NMR spectr
oscopy in a viscous hydrocarbon, 2,4-dicyclohexyl-2-methylpentane. Pressure
-induced retardations that cannot be rationalized within the framework of t
he transition state theory (TST) were observed, and it was concluded that t
he reaction was cast into the TST-invalid nonequilibrium conditions by high
pressure.