Isomeric forms of [Mn12O12(O2CR)(16)(H2O)(4)] complexes showing different magnetization relaxation processes

Authors
Ruiz, D Sun, ZM Aubin, SMJ Rumberger, E Incarvito, C Folting, K Rheingold, AL Christou, G Hendrickson, DN
Citation
D. Ruiz et al., Isomeric forms of [Mn12O12(O2CR)(16)(H2O)(4)] complexes showing different magnetization relaxation processes, MOL CRYST A, 334, 1999, pp. 1125-1134
Citations number
25
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS
ISSN journal
1058725X → ACNP
Volume
334
Year of publication
1999
Part
2
Pages
1125 - 1134
Database
ISI
SICI code
1058-725X(1999)334:<1125:IFO[CS>2.0.ZU;2-U
Abstract
The characterization of two new single-molecule magnets, [Mn12O12(O2CCH2C6H 5)(16)(H2O)(4)] (7) and [Mn12O12(O2CCH2But)(16)(H2O)(4)] (8) is reported he re. Even though the two complexes have the same isomeric arrangement of H2O ligands the ac magnetic susceptibility responses are different for the two complexes. Complex 7 shows an out-of-phase (chi(M)") peak in the 4-7 K reg ion, whereas complex 8 shows a chi(M)" peak in the 2-4 K region. The influe nce of solvate molecules upon the magnetization relaxation rates of these M n-12 complexes is studied.