Molecular nano-arches on silicon

Concerted Thermal-Plus-Electronic Nonlocal Desorption of Chlorobenzene from Si(111)-7 × 7 in the STM

“…The chlorobenzene/Si(111)-7×7 system has been used for the elucidation of atomic manipulation mechanisms by both our group and others. 4,11,[14][15][16][17][18][19][20][21] Here we demonstrate that non-local desorption of the molecules by electron injection depends on the surface temperature. The emerging picture is of "concerted" (i.e., thermal plus electronic) desorption, via electronic excitation of the chemisorbed chlorobenzene molecule to an intermediate physisorbed state from which thermal desorption occurs.…”