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An ionene with spirane structure (spiroionene) |
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| Authors: | Klaus Müllen Johann Lex Rolf C Schulz Frank Walter |
| Affiliation: | 1. Max-Planck-Institute for Polymer Research, Ackermannweg10, D-6500, Mainz, Federal Republic of Germany 2. Department of Organic Chemistry, University of K?ln, Greinstrasse 4, D-5000, K?ln 41, Federal Republic of Germany 3. Department of Organic Chemistry, University of Mainz, J.J. Becher-Weg, D-6500, Mainz, Federal Republic of Germany |
| Abstract: | The secondary diamine 1,3,5,7-tetrahydro1,2c:4,5c'] benzodipyrrole (3) and 1,2,4,5-tetrabromomethylbenzene (1) form a polymeric ionene with spirane structure through a repetitive alkylation reaction. The structure of the product could be proven by13C-NMR spectroscopy by comparison with suitable reference compounds. Solutions in aqueous methanol exhibit a typical polyelectrolyte effect. Variation of the counterions produces sufficient solubility in organic solvents. From the crystal structure of a similar model compound one can conclude that the synthesized polymer has a rod-like shape. |
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