Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Magnetic anisotropy of two cyclic hexanuclear Fe(III) clusters entrapping alkaline ions
Autore:
Waldmann, O; Schulein, J; Koch, A; Muller, P; Bernt, I; Saalfrank, RW; Andres, HP; Gudel, HU; Allenspach, P;
Indirizzi:
Univ Erlangen Nurnberg, Inst Phys 3, D-91058 Erlangen, Germany Univ Erlangen Nurnberg Erlangen Germany D-91058 -91058 Erlangen, Germany Univ Erlangen Nurnberg, Inst Organ Chem, D-91058 Erlangen, Germany Univ Erlangen Nurnberg Erlangen Germany D-91058 -91058 Erlangen, Germany Univ Bern, Dept Chem & Biochem, CH-3000 Bern, Switzerland Univ Bern BernSwitzerland CH-3000 & Biochem, CH-3000 Bern, Switzerland ETH Zurich, Lab Neutronenstreuung, CH-5232 Villigen, Switzerland ETH Zurich Villigen Switzerland CH-5232 g, CH-5232 Villigen, Switzerland PSI, CH-5232 Villigen, Switzerland PSI Villigen Switzerland CH-5232PSI, CH-5232 Villigen, Switzerland
Titolo Testata:
INORGANIC CHEMISTRY
fascicolo: 25, volume: 38, anno: 1999,
pagine: 5879 - 5886
SICI:
0020-1669(199912)38:25<5879:MAOTCH>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
IRON(III) DIMERS; TRANSITION; DEPENDENCE; SPECTROSCOPY; WHEEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Waldmann, O Univ Erlangen Nurnberg, Inst Phys 3, D-91058 Erlangen, GermanyUniv Erlangen Nurnberg Erlangen Germany D-91058 gen, Germany
Citazione:
O. Waldmann et al., "Magnetic anisotropy of two cyclic hexanuclear Fe(III) clusters entrapping alkaline ions", INORG CHEM, 38(25), 1999, pp. 5879-5886

Abstract

The magnetic anisotropy of the two cyclic hexanuclear Fe(III) clusters [Lisubset of Fe6L6]Cl . 6CHCl(3) and [Na subset of Fe6L6]Cl . 6CHCl(3), L = N(CH2CH2O)(3), was investigated. Based on a spin Hamiltonian formalism, the magnetic anisotropy was calculated exactly to first order, i.e., in the strong exchange limit, using Bloch's perturbational approach and irreducible tensor operator techniques. Experimentally, the magnetic anisotropy was investigated by magnetic susceptibility and high-field torque magnetometry of single crystals as well as inelastic neutron scattering. It is demonstrated that torque magnetometry provides a valuable tool for the study of magneticanisotropy in spin cluster complexes. The experimental data could be accurately reproduced by;he calculations, and the different methods yield consistent values for the coupling constants and zero-field-splitting parameters. Both the anisotropy and the exchange interaction parameter are found to increase with increasing Fe-O-Fe angle.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 20:13:36