Boosting axiality in stable high-coordinate Dy (III) single-molecule magnets

AB Canaj, MK Singh, ER Marti, M Damjanović… - Chemical …, 2019 - pubs.rsc.org
AB Canaj, MK Singh, ER Marti, M Damjanović, C Wilson, O Céspedes, W Wernsdorfer
Chemical communications, 2019pubs.rsc.org
… For this reason, we were intrigued by the complexes [Ln III LF](CF 3 SO 3 ) 2 ·H 2 O (L = 1,4,7,10-tetrakis(2-pyridylmethyl)-1,4,7,10-tetraaza-cyclododecane)
and, in particular, the notable absence of the Dy(III) analogue along with the lack of
magnetic data on any of the reported complexes. The … Herein, we report the synthesis,
magnetic characterisation and ab initio studies of [Dy III LF](CF 3 SO 3 ) 2 ·H 2 O (1).
Furthermore, we demonstrate an elegant strategy for improving the magnetic behaviour of
high-coordinate 4f complexes. By carefully modulating the ligand environment in silico, we …
A new nine-coordinate, air-stable Dy(III) single-ion magnet has been successfully isolated. Our in silico studies demonstrate that through carefully modulating the ligand electronics, the axiality can be boosted to generate Ucal barriers of over 600 K.
The Royal Society of Chemistry
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