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Nitrogen-15 n.m.r. characterization of bent and linear nitrosyl ligands in the solid state by cross-polarisation magic-angle-spinning spectroscopy of complexes of ruthenium

1985; Royal Society of Chemistry; Issue: 8 Linguagem: Inglês

10.1039/c39850000444

2050-5639

Joan Mason, D. Michael P. Mingos, Jacob Schaefer, Darren J. Sherman, E. O. Stejskal,

Lanthanide and Transition Metal Complexes

High-resolution cross-polarisation magic-angle spinning (CP/MAS)15N n.m.r. spectroscopy of solid [RuCl(NO)2(PPh3)2](BF4) shows a large chemical shift anisotropy for the bent as compared with the linear nitrosyl ligand (in contrast to solution 15N n.m.r. which shows a bent–linear ligand fluxionality): in solid [Ru(NO)2(PPh3] the two near-linear nitrosyls, with Ru–N–O bond angles differing by 7°, are clearly distinguished.