Covalent Embedding of Ni(2+)/Fe(3+) Cyanometallate Structures in Silica by Sol–Gel Processing

Compound [Ni(AEAPTS)(2)](3)[Fe(CN)(6)](2) (AEAPTS=N-(2-aminoethyl)-3-aminopropyltrimethoxysilane), in which Ni(2+) and Fe(3+) ions are ferromagnetically coupled through cyano bridges, was prepared. Sol–gel processing of the AEAPTS derivative resulted in incorporation of the cyanometallate in silica....

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Detalles Bibliográficos
Autores principales: Felbermair, Elisabeth, Sidorenko, Andrey, Paschen, Silke, Akbarzadeh, Johanna, Peterlik, Herwig, Schubert, Ulrich
Formato: Online Artículo Texto
Lenguaje:English
Publicado: WILEY-VCH Verlag 2014
Materias:
Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4497326/
https://www.ncbi.nlm.nih.gov/pubmed/24867432
http://dx.doi.org/10.1002/chem.201402805
Descripción
Sumario:Compound [Ni(AEAPTS)(2)](3)[Fe(CN)(6)](2) (AEAPTS=N-(2-aminoethyl)-3-aminopropyltrimethoxysilane), in which Ni(2+) and Fe(3+) 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 μ(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.

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