Abstract
Two previously unreported low-temperature structures of chlorine on silver(111) are discussed: the sharp Ag(111)−(√3 × √3)R30°−Cl, which disorders above 195 K and a split spot pattern assigned as Ag(111)−(13 × 13)−Cl. The latter surface is also disordered at room temperature and gives a diffuse pattern reminiscent of a (√3 × √3) R30° pattern. These patterns are discussed with reference to previous work and compared to chlorine adsorption on other fcc transition metal (111) surfaces. SEXAFS analysis of the sharp Ag(111)−(√3 × √3)R30°−Cl surface reveals a Cl−Ag bond length of 2.48 A, which disagrees with a previous SEXAFS bond length determination for chlorine on Ag(111), but is in accordance with trends in metal−chlorine bond lengths for other fcc metal (111) (√3 × √3) R30° surfaces.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
