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Updated: May 27, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Carboxylate and coordination influence on the formation of an active RuV Oxo species
Jamal El-Abid1, Kevin M Dorst1, Andrew K Inge2
1Department of Organic Chemistry, Arrhenius Laboratory Stockholm University, Svante Arrhenius Väg 16C, 10691, Stockholm, Sweden.
Abstract:
Understanding the structure of Ru(V)-oxo species is crucial for designing novel catalysts for sustainable energy applications, such as water splitting for green hydrogen production. This study reports the EPR detection of a Ru(V)-oxo intermediate stabilized by terpyridine and phenanthroline carboxylate ligands. The interaction between the carboxylate group and the ruthenium center, along with PCET-dependent hemilability under oxidative conditions, plays a critical role in achieving the high-valent state. Subtle changes in the coordination environment around the central metal also proved to be essential. Low-temperature NMR, high-resolution mass spectrometry, UV-Vis spectroscopy, and density functional theory calculations support these findings.
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