New sulfur rich lanthanide based materials: synthesis and magnetic properties

• Published in: Journal of alloys and compounds 2002-10, Vol.344 (1), p.114-119
• Main Authors: Baux, C, Daiguebonne, C, Guillou, O, Boubekeur, K, Carlier, R, Sorace, L, Caneschi, A
• Format: Article
• Language: English
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Crystal structure; Exact sciences and technology; Inorganic compounds; Lanthanide; Magnetic properties and materials; Magnetically ordered materials: other intrinsic properties; Magnetism; Metal complexes; Physics; Saturation moments and magnetic susceptibilities; Structure of solids and liquids; crystallography; Structure of specific crystalline solids
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/S0925-8388(02)00320-1

A Gd(III) complex with tetrathiooxalate has been obtained by reacting trivalent lanthanide ion and tetraethylammonium tetrathiooxalate. Its synthesis and characterizations (EPR, ICP, FTIR, TGA) as well as its magnetic properties are reported here. The Gd(III)–Gd(III) magnetic interaction is weakly antiferromagnetic and the fit of the magnetic data leads to g=2.0 and J=−0.105 cm −1. A new Y(III) sulfate has also been obtained as a by-product during unsuccessful attempts of crystallization of an Y(III) complex with tetrathiooxalate. Its crystal structure has been determined and is described here. The chemical formula is Y(SO 4) 2.H 2O.NH 2(CH 3) 2 and it crystallizes in the space group P21/n with: a=8.5706(7) Å, b=19.6491(17) Å, c=5.6638(5) Å, β=90.522(1) and Z=4.