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Synthesis, Structure, Spectroscopic Studies, and Complexation of Novel Crown Ether Butadienyl Dyes
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2002 (English)In: Helvetica Chimica Acta, Vol. 85, no 1, 60-81 p.Article in journal (Refereed) Published
Abstract [en]

Butadienyl dyes of the benzothiazole series with various fragments of benzocrown ethers 1a-c were synthesized for the first time. The structures and spectral properties of crown-containing butadienyl dyes and their complexes with alkali and alkaline-earth metal cations were studied by X-ray diffraction analysis and 1H-NMR, UV/VIS, and resonance Raman spectroscopy. To interpret the experimental results, quantum-chemical calculations were performed. In the case of Sr2+ and Ba2+ ions, the formation of strong sandwich complexes [M(1b)2]2+ of an unusual structure involving stacking interactions was established; the dye molecules are arranged one above another in the complex according to the head-to-head' pattern.

Place, publisher, year, edition, pages
2002. Vol. 85, no 1, 60-81 p.
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Chemical Sciences
URN: urn:nbn:se:umu:diva-9088DOI: 10.1002/1522-2675(200201)85:1<60::AID-HLCA60>3.0.CO;2-COAI: diva2:148759
Available from: 2008-02-29 Created: 2008-02-29 Last updated: 2013-03-14Bibliographically approved

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Eliasson, BertilEdlund, Ulf
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Department of Chemistry
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