Surface organometallic chemistry of tin: thermal transformation, under vacuum, of yields Si-O-Sn(n-Bu)3 supported on silica

Dialkylated, monoalkylated and nonalkylated tin surface complexes were formed when a well-defined surface organometallic fragment was grafted at the surface of two silicas, SiO2(200) and SiO2(500). The degree of dehydroxylation differentiated the two silicas. The choice of a starting tin complex was crucial for the control of surface organostannic fragment structure.