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- W1991121570 abstract "The reaction of cyclopropylmethanethiol on oxygen-modified Mo(110) is studied as a means of probing for radical species and their residence times on surfaces. A thiolate species and a surface hydroxyl group, OHa, form upon adsorption of cyclopropylmethanethiol on O-covered Mo(110). Near 200 K, homolytic cleavage of the thiolate C−S bond occurs, yielding the methylcyclopropyl radical. The radical abstracts hydrogen from OHa and desorbs without rearrangement as methylcyclopropane. Between 300 and 350 K, trapping of the ring-closed radical by surface oxygen via C−O bond formation competes efficiently because of an increasing number of free oxygen sites, resulting in a surface covered with methylcyclopropoxide species. Reactions of the cyclic alkoxide are similar to those observed for the O analogue hydroxymethylcyclopropane; it undergoes C−O bond scission, rearranges to the butenyl radical, and forms linear alkoxide and alkyl species between 350 and 430 K. However, the sulfur deposited by C−S bond cleavage (..." @default.
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- W1991121570 date "2001-12-22" @default.
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- W1991121570 title "Effect of Coadsorbed Species and Temperature on Competitive Reaction Channels for Nascent Radicals: c-C3H7CH2SH on Mo(110)−(6 × 1)-O" @default.
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