Exquisite sensitivity of the ligand field to solvation and donor polarisability in coordinatively saturated lanthanide complexes

Kevin Mason; Alice C. Harnden; Connor W. Patrick; Adeline W. J. Poh; Andrei S. Batsanov; Elizaveta A. Suturina; Michele Vonci; Eric J. L. McInnes; Nicholas F. Chilton; David Parker

doi:10.1039/C8CC04995E

Exquisite sensitivity of the ligand field to solvation and donor polarisability in coordinatively saturated lanthanide complexes†

Kevin Mason,

^a Alice C. Harnden,

^a Connor W. Patrick,

^a Adeline W. J. Poh,^a Andrei S. Batsanov,

^a Elizaveta A. Suturina,

^b Michele Vonci,

^c Eric J. L. McInnes,^c Nicholas F. Chilton

^c and David Parker

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, Durham University, South Road, Durham, UK
E-mail: david.parker@durham.ac.uk

^b School of Chemistry, The University of Southampton, Highfield, Southampton, UK

^c School of Chemistry, The University of Manchester, Oxford Road, Manchester, UK

Abstract

Crystallographic, emission and NMR studies of a series of C₃-symmetric, nine-coordinate substituted pyridyl triazacyclononane Yb(III) and Eu(III) complexes reveal the impact of local solvation and ligand dipolar polarisability on ligand field strength, leading to dramatic variations in pseudocontact NMR shifts and emission spectral profiles, giving new guidance for responsive NMR and spectral probe design.

Chemical Communications

Exquisite sensitivity of the ligand field to solvation and donor polarisability in coordinatively saturated lanthanide complexes†

Abstract

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Exquisite sensitivity of the ligand field to solvation and donor polarisability in coordinatively saturated lanthanide complexes

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