Crystal-structure and Mössbauer studies of Li[sub]1.746]Nd[sub]4.494FeO9[sub]9.493

Mihael Drofenik (Avtor), Irena Ban (Avtor), Darko Makovec (Avtor), Darko Hanžel (Avtor), Amalija Golobič (Avtor), Ljubo Golič (Avtor)

Povzetek

The ▫$Li_1.746Nd_4.494FeO_9.493$▫ (LNF) ternary phase, located in the ▫$Li_2O$▫-rich part of the ▫$Li_2O-Nd_2O_3-Fe_2O_3$▫ system, crystallizes with a cubic unit cell of dimension and the space group Im3m. Refinement on F resulted in R=1.9%. The structure is comprised of a network of corners, edges and faces sharing the coordination polyhedra of neodymium. In between this skeleton the regular octahedra of oxygen-coordinated iron and trigonal prisms of lithium are located. The Mössbauer spectra revealed the presence of ▫$Fe^3+$▫, ▫$Fe^4+$▫ and ▫$Fe^5+$▫ ions distributed on two symmetry-independent lattice positions.

Ključne besede

crystal structure;ternary compounds;single-crystal X-ray diffraction;Mössbauer spectroscopy;iron oxidation state;kristalna struktura;ternarne spojine;rentgenska difrakcija;Mössbauerjeva spektroskopija;rentgenska strukturna analiza;

Podatki

Jezik:	Angleški jezik
Leto izida:	2007
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UM FKKT - Fakulteta za kemijo in kemijsko tehnologijo
UDK:	548.73
COBISS:	10850838
ISSN:	0022-4596
Št. ogledov:	1870
Št. prenosov:	40
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Angleški jezik
URN:	URN:SI:UM:
Strani:	str. 1-6
Letnik:	ǂVol. ǂ180
Čas izdaje:	2007
ID:	8718628