Naslov
NEW DIACETYLENIC DEHYDROBENZOANNULENE DERIVATIVES

Autori
Zimmermann, Boris ; Baranović, Goran

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Molecules Trapped in Solids / Bougeard, Daniel - , 2004

Skup
Molecules Trapped in Solids - Summer School

Mjesto i datum
Dijon, Francuska, 13.09.2004. - 17.09.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
diacetylenic; benzoannulenes; IR spectroscopy

Sažetak
Cyclic dimers (1) and trimers (2) of 1, 2-diethynylbenzenes were prepared by multi-step synthesis, from diiodoarenes via 1, 2-diethynylbenzenes and oxidative coupling. According to our knowledge, compound 1c is the first example of Eglinton-Galbraith dimer derivative with electron donor and acceptor groups (push-pull macrocycle). These compounds can be produced in useful quantities and are of interest as precursors to novel conjugated organic polymers. To better understand polymerisation of these compounds, temperature dependent infrared measurements were performed. Dimeric compounds 1 show an infrared band at 480 cm-1 which is characteristic for octadehydrodibenzo[12]annulene ring and corresponds to central ring deformation [1]. Decomposition of 1 can be observed by measuring intensity of this band. The identification and thermal behaviour of 1 and 2 will be discussed.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA