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First synthesis and electronic properties of ring-alkynylated phenothiazines

✍ Scribed by Thomas J.J. Müller

Publisher
Elsevier Science
Year
1999
Tongue
French
Weight
226 KB
Volume
40
Category
Article
ISSN
0040-4039

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✦ Synopsis

3-mono-and 3,7-bis(alkynylated) phenothiazines 7 and 8 can be readily synthesized from the corresponding phenothiazinyl carbaldehydes. The monoalkynylated phenothiazines 7 are dimerized or cross-coupled to give highly fluorescent phenothiazinyl-terminated redox active dumbbells 9 and 10 that display large Stokes shifts. Compound 9 reveals a strong electronic coupling of the phenothiazinyl moieties according to cyclic voltammetry.

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