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Asymmetric Bis-PNP Pincer Complexes of Zirconium and Hafnium - a Measure of Hemilability

preprint
submitted on 18.08.2020 and posted on 19.08.2020 by Celia Idelson, Leah Webster, Tobias Krämer, Mark Chadwick
Asymmetrically-bound pyrrollide-based bis-PNP pincer complexes of zirconium and hafnium
have been formed. The [κ2-PNPPh][κ3-PNPPh]MCl2 species are in direct contrast to previous
zirconium PNP pincer complexes. The pincer ligands are fluxional in their binding and the
energy barrier for exchange has been approximated using VT-NMR spectroscopy and the
result validated by DFT calculations.

History

Email Address of Submitting Author

m.chadwick@imperial.ac.uk

Institution

Imperial College London

Country

United Kingdom

ORCID For Submitting Author

0000-0003-4627-9855

Declaration of Conflict of Interest

No conflicts of interest

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