Coordination Chemistry of Benzene, Toluene, Cyclohexadienes, Cyclohexene, and Cyclohexane on Pt100)

Article abstract of DOI:10.1021/j100223a005

The surface chemistry of benzene, toluene, cyclohexane, cyclohexene, and cyclohexadienes on Pt(100) is described.Benzene chemisorption was largely molecular although H-D exchange between chemisorbed C6H6 and C6D6 was observed at temperatures of 100 deg C and above.Toluene chemisorbed with bond breaking to give Pt-(100)-benzyl.This benzyl species (C6D5CD2) underwent H-D exchange with chemisorbed hydrogen.Exchange was more facile at the CH2 site than at aromatic C-H sites.Cyclohexane, cyclohexene, and cyclohexadienes chemisorbed on Pt(100) to form benzene with expected relative ease of dehydrogenation of cyclohexadienes >/= cyclohexene > cyclohexane.