Covalent Embedding of Ni2+/Fe3+ 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 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 obtaine...
Saved in:
Published in | Chemistry : a European journal Vol. 20; no. 30; pp. 9212 - 9215 |
---|---|
Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
21.07.2014
WILEY‐VCH Verlag Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Compound [Ni(AEAPTS)2]3[Fe(CN)6]2 (AEAPTS=N‐(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 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.
Magnetic crowd: [Ni(AEAPTS)2]3[Fe(CN)6]2 (AEAPTS = N‐(2‐aminoethyl)‐3‐aminopropyltrimethoxysilane) was covalently tethered to silica gel. 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 (saturation remanence≈300 emu mol−1, coercitivity 0.03 T). |
---|---|
Bibliography: | ArticleID:CHEM201402805 German Research Foundation Funded Access European Research Council - No. FP7-ERC-227378 Fonds zur Förderung der wissenschaftlichen Forschung (FWF - No. P22536; No. W1243; No. I449 ark:/67375/WNG-F6F04MWW-P istex:72C20FBFB3659A2D3D360A5D6828A071D23778E6 DFG - No. PE1732/1-2 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0947-6539 1521-3765 |
DOI: | 10.1002/chem.201402805 |