Determination of molecular hydration in solution via changes in magnetic anisotropy†
Marcus J.
Giansiracusa, 
a
Yasmin L.
Whyatt,
a
Kevin
Mason,
b
David
Parker,
*c
Eric J. L.
McInnes
*a
and
Nicholas F.
Chilton
*a
a
Yasmin L.
Whyatt,
a
Kevin
Mason,
b
David
Parker,
*c
Eric J. L.
McInnes
*a
and
Nicholas F.
Chilton
*a
Abstract
The hydration behaviour of coordination complexes is important for understanding their roles as bio-imaging agents. Determination of hydration is difficult, and various optical and NMR-based techniques have been used. Here we use EPR spectroscopy to unambiguously demonstrate that a t-butyl-pyridyl-functionalised ErIII DOTA derivative coordinates water, while its methylphosphinate analogue does not.
- This article is part of the themed collection: Celebrating the 200th Anniversary of the University of Manchester
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