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Titolo:
The nuclear and magnetic structure of ''white rust'' - Fe(OH0.86D0.14)(2)
Autore:
Parise, JB; Marshall, WG; Smith, RI; Lutz, HD; Moller, H;
Indirizzi:
SUNY Stony Brook, Ctr High Pressure Res, Stony Brook, NY 11794 USA SUNY Stony Brook Stony Brook NY USA 11794 Res, Stony Brook, NY 11794 USA SUNY Stony Brook, Dept Geosci, Stony Brook, NY 11794 USA SUNY Stony BrookStony Brook NY USA 11794 osci, Stony Brook, NY 11794 USA SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA SUNY Stony Brook Stony Brook NY USA 11794 Chem, Stony Brook, NY 11794 USA Rutherford Appleton Lab, CLRC, ISIS Neutron Facil, Didcot OX11 0QX, Oxon, England Rutherford Appleton Lab Didcot Oxon England OX11 0QX 1 0QX, Oxon, England Univ Siegen, D-57068 Siegen, Germany Univ Siegen Siegen Germany D-57068Univ Siegen, D-57068 Siegen, Germany
Titolo Testata:
AMERICAN MINERALOGIST
fascicolo: 1, volume: 85, anno: 2000,
pagine: 189 - 193
SICI:
0003-004X(200001)85:1<189:TNAMSO>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
POWDER NEUTRON-DIFFRACTION; LATTICE VIBRATION-SPECTRA; SOLID HYDROXIDES; HYDROGEN-BONDS; HARTREE-FOCK; PRESSURE; BRUCITE; MG(OH)(2); SPECTROSCOPY; COMPRESSION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Parise, JB SUNY Stony Brook, Ctr High Pressure Res, Stony Brook, NY 11794 USA SUNY Stony Brook Stony Brook NY USA 11794 Brook, NY 11794 USA
Citazione:
J.B. Parise et al., "The nuclear and magnetic structure of ''white rust'' - Fe(OH0.86D0.14)(2)", AM MINERAL, 85(1), 2000, pp. 189-193

Abstract

The structure of Fe(OH0.86,OD0.14)(2) was refined by applying the Rietveldtechnique to neutron powder diffraction data collected at 300, 150, and 10K. The nuclear structure, of the CdI2 type (P (3) over bar mi) and isostructural with Mg, Ca, Mn, Ni, and P-Co(OH)(2), is maintained over the range of temperatures studied. At 10 K, the magnetic structure is ordered antiferromagnetically, with the magnetic moments aligned in the basal plane. The refined Fe2+ magnetic moment magnitude is 3.50(4) mu(B). This magnetic structure (space group P-2c(1) over bar) is unique amongst those encountered in the transition metal dihydroxides, for which the moment is either directed along the c axis [beta-Co(OH)(2) and Ni(OH)(2)], or at least has a considerable component along this direction [Mn(OH)(2)]. The dependence of the strength of potential hydrogen bonds with temperature is discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 09:14:45