ChemRxiv
In the pursuit of a stable hydrogen evolution photosensitiser, we demonstrate the incorporation of a series of our H-bond rich guanidine-styled iridium (III) complexes into a catalytic system. Using automation accelerated catalysis screening techniques we optimised our system quickly and effectively to observe how these strongly H-bonding complexes may perform. Proven to be photo-electronically suitable, and with effective electron transfer abilities evidenced by Stern-Volmer mechanistic studies, the complexes showed modest levels of H2 evolution in comparison to previously investigated photosensitisers with general formula [Ir(C^N)2(N^N)].
For details:
T. Harri Jones a, Christopher F. Bradshaw b, John W. Ward b, and Barry A. Blight a
a) Department of Chemistry, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
b) Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool, L69 7ZD, U.K.
DOI: https://10.26434/chemrxiv-2025-ngxc3
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