Ligand effects of NHC–iridium catalysts for signal amplification by reversible 
exchange (SABRE)

van Weerdenburg, B. J. A.; Glöggler, S.; Eshuis, N.; Engwerda, A. H. J. (Ton); Smits, J. M. M.; de Gelder, R.; Appelt, S.; Wymenga, S. S.; Tessari, M.; Feiters, M. C.; Blümich, B.; Rutjes, F.P. J. T.

doi:10.1039/C3CC43423K

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Ligand effects of NHC–iridium catalysts for signal amplification by reversible exchange (SABRE)

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Glöggler, S.
Research Group of NMR Signal Enhancement, MPI for Biophysical Chemistry, Max Planck Society;

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Citation

van Weerdenburg, B. J. A., Glöggler, S., Eshuis, N., Engwerda, A. H. J. (., Smits, J. M. M., de Gelder, R., et al. (2013). Ligand effects of NHC–iridium catalysts for signal amplification by reversible exchange (SABRE). Chemical Communications, 49(67), 7388-7390. doi:10.1039/C3CC43423K.

Cite as: https://hdl.handle.net/21.11116/0000-0000-2971-3

Abstract

SABRE hyperpolarizes substrates by polarization transfer from para-hydrogen in a metal complex. We have measured the signal enhancement of pyridine and its exchange rate in various [Ir(NHC)(Py)3(H)2]+ complexes to gain insight into their dependence on the N-Heterocyclic Carbene (NHC) ligand's steric and electronic properties.