Covalent Embedding of Ni2+/Fe3+ Cyanometallate Structures in Silica by Sol–Gel Processing. Issue 30 (27th May 2014)

• Record Type: Journal Article
• Authors: Felbermair, Elisabeth; Sidorenko, Andrey; Paschen, Silke; Akbarzadeh, Johanna; Peterlik, Herwig; Schubert, Ulrich
• Is Part Of: Chemistry. Volume 20:Issue 30(2014)
• Page Start: 9212
• Page End: 9215
• Publication Date: 2014-05-27
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201402805
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Compound [Ni(AEAPTS)₂]₃[Fe(CN)₆]₂ (AEAPTS=<italic>N</italic>‐(2‐aminoethyl)‐3‐aminopropyltrimethoxysilane), in which Ni²⁺ and Fe³⁺ ions are ferromagnetically coupled through cyano bridges, was prepared. Sol–gel processing of the AEAPTS derivative resulted in incorporation of the cyanometallate in silica. The obtained material is magnetically ordered below 22 K with an effective magnetic moment <italic>μ</italic>_eff of 4.46 μ_B at room temperature, a maximum of 8.60 μ_B at approximately 15 K and a narrow hysteresis at 2 K, with a saturation remanence of about 300 emu mol⁻¹ and a coercitivity of 0.03 T.</p> </abstract>