Details

Autor(en) / Beteiligte

• Glebov, Evgeni M
• Pozdnyakov, Ivan P
• Matveeva, Svetlana G
• Melnikov, Alexei A
• Chekalin, Sergey V
• Rogozina, Marina V
• Yudanov, Vladislav V
• Grivin, Vjacheslav P
• Plyusnin, Victor F

Titel

Primary photophysical and photochemical processes for hexachloroosmate(iv) in aqueous solution

Ist Teil von

• Photochemical & photobiological sciences, 2017-02, Vol.16 (2), p.22-227

Ort / Verlag

Cham: Springer International Publishing

Erscheinungsjahr

2017

Link zum Volltext

Quelle

SpringerLink (Online service)

Beschreibungen/Notizen

• The photoaquation of the Os IV Cl 6 2− complex was studied by means of stationary photolysis, nanosecond laser flash photolysis and ultrafast kinetic spectroscopy. The Os IV Cl 5 (OH) 2− complex was found to be the only reaction product. The quantum yield of photoaquation is rather low and wavelength-dependent. No impact of redox processes on photoaquation was revealed. The total characteristic lifetime of the process is about 80 ps. Three intermediates were recorded in the femto- and picosecond time domains and assigned to different Os( iv ) species. The nature of intermediates and possible mechanisms of photoaquation are discussed. The photoaquation of the OsCl 6 2− complex occurs in a time interval of 80 ps via heterolytic cleavage of the Os-Cl bond.