Preparation and Radical Oligomerization of anFe(II) Complex without Loss of Spin-Crossover Properties |
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| Authors: | Gerald Schwarzenbacher Marion S. Gangl Marian Goriup Martin Winter Matthias Grunert Franz Renz Wolfgang Linert Robert Saf |
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| Affiliation: | (1) Institute for Chemical Technology of Organic Materials, Technical University Graz, A-8010 Graz, Austria, AT;(2) Institute for Chemical Technology of Inorganic Materials, Technical University Graz, A-8010 Graz, Austria, AT;(3) Institute for Inorganic Chemistry, Vienna University of Technology, A-1060 Vienna, Austria, AT |
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| Abstract: | Summary. 11-(4H-1,2,4-Triazol-4-yl)-undecylmethacrylate (1), a new ligand for Fe(II) spin-crossover (SCO) complexes containing a polymerizable group, was synthesized and characterized. The complex [Fe·1 3](BF4)2 (2) was obtained by reaction of 1 with Fe(BF4)2·6H2O (molar ratio 1/Fe(II) = 3/1) in THF. Complex 2 showed a gradual spin-crossover between 80 and 230 K. The methacrylate units in the ligands of complex 2 could be oligomerized radically in solution (initiator: azoisobutyronitrile) without loss of the spin-crossover behaviour. Received May 30, 2000. Accepted December 10, 2000 |
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| Keywords: | . Spin-crossover High-spin Low-spin Triazole Methacrylate Oligomer Polymer. |
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