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Updated: Jun 17, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Light Activated Release of Nitrile Ligands from trans-Ru(L)(PPh3)2(nitrile) Complexes
Ross J Davidson1, Yu-Ting Hsu1, Dmitry S Yufit1
1Department of Chemistry, Durham University, South Rd, Durham DH1 3LE, U.K.
Abstract:
A series of trans-RuL(PPh3)2(nitrile) and {RuL(PPh3)2}.2-μ-(nitrile)-based complexes [where L = 2,2'-(3,4-diphenyl-pyrrole-2,5-diyl)dipyridine (dpp), di(pyridin-2-yl)isoindoline-1,3-diimine (bpi), or 4-(4-methoxyphenyl)-6-phenyl-2,2'-bipyridine (Pbpy); and nitrile = 1,4-dibenzontirile, 4-ethynylbenzonitrile, or dicyanamide] were synthesized and characterized, and their electrochemical and photochemical behaviors were investigated. Those complexes that contained a significant nitrile contribution to their 3MLLCT show a release of their nitrile ligand (when L = dpp or Pbpy and the nitrile ligand = 4-dibenzontirile, or 4-ethynylbenzonitrile) with dissociation constants up to 8.09 × 10-4 s-1.
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