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Updated: Apr 29, 2026
Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Covalent embedding of Ni2+/Fe3+ cyanometallate structures in silica by sol-gel processing
Elisabeth Felbermair1, Andrey Sidorenko, Silke Paschen
1Institute of Materials Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Wien (Austria), Fax: (+43) 1-58801-15399.
Abstract:
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 μeff of 4.46 μB at room temperature, a maximum of 8.60 μB 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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