An e.s.c.a. study of the dissociative and associative chemisorption of halogeno-alkenes and -alkynes on a Pt(100) surface
Abstract
Quantitative u.h.v.–e.s.c.a. studies of the chemisorption of F3C-CCH, H2C
CHF, H2C
CF2, cis-FHC
CHF, and F2C
CFCl on a clean Pt(100) surface show that the initial sorption of vinyl fluoride and 1,1-difluoroethylene is dissociative, the chemisorption of trifluoropropyne, cis-1,2-difluoroethylene, and trifluorochloroethylene being associative; a mechanism for the dissociation reaction is suggested.