Synthesis and charge transfer characteristics of a ruthenium-Acetylide complex

Journal
RSC Advances  
Volume
10
Issue
70
Start Page
43242
End Page
43247
Citation
RSC Advances 10 (70): 43242-43247 (2020-11-27)
Publisher DOI
10.1039/d0ra08390a
Scopus ID
2-s2.0-85097819643
A novel ruthenium-Acetylide complex was synthesised and characterised in solid state and solution. Thin films of the complex were evaporated on silver and gold foils in ultra high vacuum in order to probe the electronic properties with photoemission spectroscopy. The charge transfer characteristics of the complex with the strong acceptor F6TCNNQ were investigated by UV-vis absorption in solution as well as at an interface with photoemission spectroscopy. A new excitation in the former optical gap of the pristine materials was probed in solution. Moreover, it was possible to identify the oxidised complex as well as the reduced acceptor by X-ray photoemission spectroscopy. In particular, our data reveal that oxidation of the complex mainly occurs at the Ru centre. The charge transfer can be characterised as localised and mainly ionic although signs of a reaction of the acceptors aminogroups with the ruthenium-Acetylide complex were found. This journal is