Bistriazine based streptocyanines. Preparation, structural determination and optoelectronic properties
A series of bistriazine-based streptocyanines has been selectively prepared. A variety of substituents has been introduced into the triazine ring with p-phenylenediamine as a conjugated spacer between the triazine and the streptocyanine moieties. Fukui indices have been used to explain the different...
| Autor: | |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Recursos: | Universidad de Castilla-La Mancha |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/38577 |
| Acesso em linha: | https://hdl.handle.net/10578/38577 |
| Access Level: | acceso embargado |
| Palavra-chave: | Triazine, Streptocyanine, Computational calculations, DNMR, Luminescence, Microwave |
| Resumo: | A series of bistriazine-based streptocyanines has been selectively prepared. A variety of substituents has been introduced into the triazine ring with p-phenylenediamine as a conjugated spacer between the triazine and the streptocyanine moieties. Fukui indices have been used to explain the different sequential reactivity of the chlorine atoms in the triazine ring. 1D- and 2D-DNMR spectroscopy and computational calculations have been carried out to explain the dynamic behavior of these complex systems, which can be explained by the presence of a Cl…H bond. This method was used to build conjugated systems and to show the interaction between the triazine part, the spacer, and the streptocyanine moiety. A study of the optoelectronic properties has been performed by UVevis and fluorescence spectroscopy. Streptocyaninebased bistriazines are violet-blue emitters and large Stokes shifts of more than 6000 cm 1 were observed. The title compounds showed interesting properties which have potential for use in optoelectronic devices. |
|---|