scholarly journals Determination of side products in the photocatalytic generation of hydrogen with copper photosensitizers by resonance Raman spectroelectrochemistry

RSC Advances ◽  
2016 ◽  
Vol 6 (107) ◽  
pp. 105801-105805 ◽  
Author(s):  
Ying Zhang ◽  
Martin Heberle ◽  
Maria Wächtler ◽  
Michael Karnahl ◽  
Benjamin Dietzek
Keyword(s):  
Raman Spectroscopy ◽  
Hydrogen Production ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Side Product ◽  
Photocatalytic Hydrogen Production

A combination of UV-Vis, resonance Raman spectroscopy and electrochemistry is employed to reveal the nature of a side product when using heteroleptic Cu(i)-photosensitizers for photocatalytic hydrogen production.

scholarly journals Determination of the Lowest Excited State of Metal Complexes of Dipyrido[3, 2-a:2′,3′-c]Phenazine

1999 ◽  
Vol 19 (1-4) ◽  
pp. 287-289
Author(s):  
Mark R. Waterland ◽  
Keith C. Gordon
Keyword(s):  
Raman Spectroscopy ◽  
Excited State ◽  
Metal Complexes ◽  
Excited States ◽  
Copper Complexes ◽  
Resonance Raman Spectroscopy ◽  
Resonance Raman ◽  
Time Resolved ◽  
State Data

The nature of the lowest excited state of rhenium and copper complexes of dipyrido[3,2- a:2′ ,3′-c]phenazine (Dppz) has been determined using Resonance Raman, Time- Resolved Resonance Raman Spectroscopy and Spectroelectrochemistry. Comparison of spectroelectrochemical data and excited state data show that for the complexes studied no reduced ligand bands are observed in the excited state spectra thus the lowest excited states are all Ligand Centred in nature. The use of substituents at the 11 and/or 12 position of the ligand has no effect on the excited state ordering.

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