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New push-pull chromophores with ferrocene-pyridine moiety

Authors: Kulhánek Jiří | Bureš Filip

Year: 2019

Type of publication: ostatní - přednáška nebo poster

Page from-to: nestránkováno

Titles:

Language	Name	Abstract	Keywords
eng	New push-pull chromophores with ferrocene-pyridine moiety	The organic, readily polarizable push-pull systems are currently tremendously investigated due to their nonlinear optical properties and thus resulting application in modern optoelectronic devices. We report herein synthesis and properties of 2 series of novel systems featuring ferrocene donor and pyridine or methylpyridinium acceptor moieties. Suzuki-Miyaura, Sonogashira or Heck coupling has been used for preparation of nine target molecules of the first serie. The second serie present quarternaly pyridinium salts obtained by reaction with iodomethane. The length, planarity and composition of the π-linker between the acceptor and donors was modified by combination of 1,4-phenylene, 2,5-thienylene, ethenylene and acetylenic subunits in order to finely tune the linear as well as nonlinear optical properties. Synthesized compounds were fully characterized by NMR and MALDI-MS. UV-VIS spectra were also measured for all compounds. Solvatochromic properties were observed in second serie. Thiophene proved to be a polarizable moiety that allows substantial intramolecular charge transfer, which causes bathochromic shift in visible part of the spectrum.	Push-pull chromophores; ferrocene-pyridine moiety; nonlinear