The Synthesis and Characterisation of a Molecular Sea-Serpent: Studies of a {Cr24 Cu7 } Chain.
Rajeh AlotaibiJonathan M FowlerSelena J LockyerGrigore A TimcoDavid CollisonJürgen SchnackRichard E P WinpennyPublished in: Angewandte Chemie (International ed. in English) (2021)
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.