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8-Dioxane ferra(III) bis(dicarbollide): A paramagnetic functional molecule as versatile building block for introduction of a Fe(III) centre into organic molecules |
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| Authors: | Jaromír Plešek Jan Machá?ek Ivana Císa?ová |
| Institution: | a Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Area of Research Institutes, Husinec-?e? 1001, 25068 ?e?, Czech Republic b Department of Inorganic Chemistry, Faculty of Natural Sciences of Charles University, Hlavova 2030, 128 42, Prague 2, Czech Republic c Institute of Chemistry and Technology of Environmental Protection, Technical University, Brno, Purkyňova 118, 612 00 Brno, Czech Republic |
| Abstract: | The synthesis of a new, paramagnetic closo-(8-(-CH2CH2O)2-1,2-C2B9H10)(1′,2′-C2B9H11)-3,3′-Fe]0 (3) is reported. This compound can serve as a versatile building block for construction of both anionic and zwitterionic derivatives, as exemplified by the synthesis of a series of compounds of general formula closo-(8-X-(CH2CH2O)2-1,2-C2B9H10)(1′,2′-C2B9H11)-3,3′-Fe], bearing organic end groups (X = NC5H5 (4), (C6H5)3P (5), OH (6), and 2-O(1-CH3O-C6H4) (7)) attached to the cluster by a diethyleneglycol spacer. Molecular structures of 3, 4, 5 and 7 were determined by single-crystal X-ray diffraction analysis and by the long-time neglected method of paramagnetic, high field NMR (1H, 13C and 11B) spectroscopy. |
| Keywords: | Boranes Carboranes Dicarbollides X-ray diffraction NMR |
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