Direct spectroscopic detection of sulfonyloxyl radicals and first measurements of their absolute reactivities

HG Korth, AG Neville, J Lusztyk

Index: Korth, Hans-Gert; Neville, Anthony G.; Lusztyk, Janusz Journal of Physical Chemistry, 1990 , vol. 94, # 25 p. 8835 - 8839

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Citation Number: 22

Abstract

Results The 308-nm laser flash photolysis (LFP) of a deoxygenated acetonitrilc solution of bis (methanesulfony1) peroxide, 3a,(0.2 M) at 18 “C yielded “instantaneously”(Le., within 4 ns, the full width at half-height of the laser pulse) a broad, transient absorption (half-width ca. IIO nm) with a maximum at ca. 450 nm and a broad, much weaker maximum at ca. 570 nm (Figure 1). Both the 450-and 570-nm absorptions decayed by a (pseudo-) first-order ...