title: High pressure effects on a trimetallic Mn(II/III) SMM.
abstract: A combined study of the high pressure crystallography and high pressure magnetism of the complex [Mn3(Hcht)2(bpy)4](ClO4)3.Et2O.2MeCN (1.Et2O.2MeCN) (H3cht is cis,cis-1,3,5-cyclohexanetriol) is presented in an attempt to observe and correlate pressure induced changes in its structural and physical properties. At 0.16 GPa the complex 1.Et2O.2MeCN loses all associated solvent in the crystal lattice, becoming 1. At higher pressures structural distortions occur changing the distances between the metal centres and the bridging oxygen atoms making the magnetic exchange between the manganese ions weaker. No significant variations are observed in the Jahn-Teller axis of the only Mn(III) present in the structure. High pressure dc chiMT plots display a gradual decrease in both the low temperature value and slope. Simulations show a decrease in J with increasing pressure although the ground state is preserved. Magnetisation data do not show any change in |D|.
authors.affiliation: School of Chemistry, The University of Edinburgh, West Mains Road, Edinburgh, UK EH9 3JJ.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Prescimone
authors.forename: Javier
authors.initials: J
authors.lastname: Sanchez-Benitez
authors.forename: Konstantin V
authors.initials: KV
authors.lastname: Kamenev
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Moggach
authors.forename: Alistair R
authors.initials: AR
authors.lastname: Lennie
authors.forename: John E
authors.initials: JE
authors.lastname: Warren
authors.forename: Mark
authors.initials: M
authors.lastname: Murrie
authors.forename: Simon
authors.initials: S
authors.lastname: Parsons
authors.forename: Euan K
authors.initials: EK
authors.lastname: Brechin