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DOI: 10.1039/A903321A (Paper) Reference Section for: Chem. Commun., 1999, 1223-1224

NMR detection of thermal and photochemical dihydrogen addition products of mono- and tri-nuclear ruthenium complexes containing carbonyl and triphenylphosphine ligands through para-hydrogen induced polarisation

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Christopher J. Sleigh, Simon B. Duckett, Roger J. Mawby and John P. Lowe

Abstract

Enhancement of NMR signals by para-hydrogen induced polarisation is shown to facilitate the detection of isomers of Ru(CO)2(H)2(PPh3)2 and Ru(CO)3(H)2(PPh3) which contain inequivalent hydride ligands, and to demonstrate that Ru3(CO)9(PPh3)3 adds H2 to form Ru3(CO)8(H)(µ-H)(PPh3)3, as well as undergoing fragmentation to form Ru(CO)3(H)2(PPh3).

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