New structural types and different oxidation levels in the family of Mn6-oxime single-molecule magnets.
The synthesis and magnetic properties of three new members of a family of salicyaldoxime based [Mn6] single-molecule magnets possessing new structural types, core topologies and Mn oxidation state distributions are reported. The isostructural complexes [MnIII6O2(R-sao)6(X)2(EtOH)6] (R = Et, X = Br (1); R = Me, X = I (2)) exhibit single-molecule magnet behaviour with spin Hamiltonian parameters S = 12, g = 1.98 and D = -0.36 cm(-1) in both cases. The hexametallic cluster [MnIII4MnIV2O2(OMe)(4-)(Et-sao)6(MeOH)2].MeOH (3.MeOH) possesses a planar rod-like topology and a mixed valent [MnIV4MnIII2] core, which is unprecedented in this family of [Mn6] SMMs.
Jones
Leigh F
LF
School of Chemistry, Joseph Black Building, West Mains Road, Edinburgh, UK EH9 3JJ.
Inglis
Ross
R
Cochrane
Martyn E
ME
Mason
Kevin
K
Collins
Anna
A
Parsons
Simon
S
Perlepes
Spyros P
SP
Brechin
Euan K
EK