publication . Article . Other literature type . 2014

Homolytic Cleavage of Molecular Oxygen by Manganese Porphyrins Supported on Ag(111)

Murphy, Barry E.; Krasnikov, Sergey A.; Sergeeva, Natalia N.; Cafolla, Attilio A.; Preobrajenski, Alexei B.; Chaika, Alexander N.; Lübben, Olaf; Shvets, Igor V.;
Open Access English
  • Published: 30 Apr 2014
  • Publisher: American Chemical Society
  • Country: United Kingdom
Abstract
Oxygen binding and cleavage are important for both molecular recognition and catalysis. Mn-based porphyrins in particular are used as catalysts for the epoxidation of alkenes, and in this study the homolytic cleavage of O2 by a surface-supported monolayer of Mn porphyrins on Ag(111) is demonstrated by scanning tunneling microscopy, X-ray absorption, and X-ray photoemission. As deposited, {5,10,15,20-tetraphenylporphyrinato}Mn(III)Cl (MnClTPP) adopts a saddle conformation with the average plane of its macrocycle parallel to the substrate and the axial Cl ligand pointing upward, away from the substrate. The adsorption of MnClTPP on Ag(111) is accompanied by a redu...
Subjects
free text keywords: General Engineering, General Physics and Astronomy, General Materials Science, Bond cleavage, Inorganic chemistry, Metal, visual_art.visual_art_medium, visual_art, Photochemistry, Substrate (chemistry), Chemistry, Monolayer, Oxidation state, Manganese, chemistry.chemical_element, Catalysis, Ligand
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publication . Article . Other literature type . 2014

Homolytic Cleavage of Molecular Oxygen by Manganese Porphyrins Supported on Ag(111)

Murphy, Barry E.; Krasnikov, Sergey A.; Sergeeva, Natalia N.; Cafolla, Attilio A.; Preobrajenski, Alexei B.; Chaika, Alexander N.; Lübben, Olaf; Shvets, Igor V.;