Synthesis, Structure, Spectroscopic Studies, and Complexation of Novel Crown Ether Butadienyl Dyes

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.

Vedernikov, Artem I (author)
Ushakov, Evgeny N (author)
Kuz'mina, Lyudmila G (author)
Feofanov, Alexei V (author)
Avakyan, Vitaly G (author)
Churakov, Andrei V (author)
Alaverdyan, Yurii S (author)
Malysheva, Ekaterina V (author)
Alfimov, Michael V (author)
Howard, Judith A K (author)
Eliasson, BertilUmeå universitet,Kemiska institutionen(Swepub:umu)beel0001 (author)
Edlund, UlfUmeå universitet,Kemiska institutionen(Swepub:umu)uled0001 (author)
Umeå universitetKemiska institutionen (creator_code:org_t)

By the author/editor: Gromov, Sergey P; Vedernikov, Arte ...; Ushakov, Evgeny ...; Kuz'mina, Lyudmi ...; Feofanov, Alexei ...; Avakyan, Vitaly ...; show more...; Churakov, Andrei ...; Alaverdyan, Yuri ...; Malysheva, Ekate ...; Alfimov, Michael ...; Howard, Judith A ...; Eliasson, Bertil; Edlund, Ulf; show less...

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