Disorder effects in Mn12–acetate at 83 K
- 12 June 2002
- journal article
- research article
- Published by International Union of Crystallography (IUCr) in Acta Crystallographica Section C Crystal Structure Communications
- Vol. 58 (7) , m371-m373
- https://doi.org/10.1107/s0108270102009010
Abstract
The structure of hexadeca-mu-acetato-tetraaquadodeca-mu(3) oxo-dodecamanganese bis(acetic acid) tetrahydrate, [Mn12O12 (CH3COO)(16) (H2O)(4)].2CH(3)COOH.4H(2)O, known as Mn-12- acetate, has been determined at 83 (2) K by X-ray diffraction methods. The fourfold (S-4) molecular symmetry is disrupted by a strong hydrogen-bonding interaction with the disordered acetic acid molecule of solvation, which displaces one of the acetate ligands in the cluster. Up to six Mn-12 isomers are potentially present in the crystal lattice, which differ in the number and arrangement of hydrogen-bonded acetic acid molecules. These results considerably improve the structural information available on this molecular nanomagnet, which was first synthesized and characterized by Lis [Acta Cryst. (1980), B36, 2042-2046].This publication has 0 references indexed in Scilit: