The Synthesis and Characterisation of a Molecular Sea-Serpent: Studies of a {Cr24 Cu7 } Chain

Rajeh Alotaibi; Jonathan M Fowler; Selena J Lockyer; Grigore A Timco; David Collison; Jürgen Schnack; Richard E P Winpenny

doi:10.1002/anie.202015731

The Synthesis and Characterisation of a Molecular Sea-Serpent: Studies of a {Cr₂₄ Cu₇ } Chain

Angew Chem Int Ed Engl. 2021 Apr 19;60(17):9489-9492. doi: 10.1002/anie.202015731. Epub 2021 Mar 17.

Authors

Rajeh Alotaibi¹, Jonathan M Fowler¹, Selena J Lockyer¹, Grigore A Timco¹, David Collison¹, Jürgen Schnack², Richard E P Winpenny¹

Affiliations

¹ Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
² Faculty of Physics, Bielefeld University, P.O. box 100131, 33501, Bielefeld, Germany.

Abstract

A finite chain of thirty-one paramagnetic centers is reported, synthesized by reaction of hydrated chromium fluoride, copper carbonate and pivalic acid in the presence of 1,4,7,10-tetrazacyclododecane (cyclen). Magnetic studies show predominantly anti-ferromagnetic exchange leading to a high density of low-lying spin states and large saturation field.

Keywords: chromium; magnetic studies; spin chains; supramolecular.

Abstract

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