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          Institute: MPI für Festkörperforschung     Collection: FKF Publikationen 2002     Display Documents



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ID: 7538.0, MPI für Festkörperforschung / FKF Publikationen 2002
Disorder effects in Mn12-acetate at 83 K
Authors:Cornia, A.; Fabretti, A. C.; Sessoli, R.; Sorace, L.; Gatteschi, D.; Barra, A. L.; Daiguebonne, C.; Roisnel, T.
Language:English
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Acta Crystallographica C
Volume:58
Start Page:m371
End Page:m373
Review Status:Peer-review
Audience:Not Specified
Abstract / Description: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].
External Publication Status:published
Document Type:Article
Communicated by:Michaela Asen-Palmer
Affiliations:MPI für Festkörperforschung
External Affiliations:; Univ Modena & Reggio Emilia, Dipartimento Chim, Via G Campi 183, I-41100 Modena, Italy
; Univ Modena & Reggio Emilia, INSTM, I-41100 Modena, Italy
; Univ Florence, Dipartimento Chim, I-50019 Sesto Fiorentino, Italy
; Univ Florence, INSTM, I-50019 Sesto Fiorentino, Italy
; CNRS, Lab Champs Magnet Intenses, F-38042 Grenoble 9, France
; INSA CS 14315, GRCM Chim Inorgan Lanthanides, F-35043 Rennes, France
; Univ Rennes 1, Chim Solide & Inorgan Mol Lab, CNRS, F-35042 Rennes, France
Identifiers:ISI:000176567300009
ISSN:0108-2701
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