Synthesi and Characterization of Organic Materials with Pi-extended Conjugation using X-Ray Techniques

PIOTTO, A. T.; BOLMARO, R. E.; AVALOS, M. C.; SPANEVELLO, R. A.

Costao do Santinho

Conferencia; Eighth International Latin American Conference on Powder Technology; 2011

Brazilian Ceramic Association

In the field of materials science, the chemical synthesis and study of properties of materials constituted by organic macromolecular systems defined by pi-extended conjugation is an area of great interest. This type of compounds exhibits remarkable electro-conductive, optical and magnetic properties as shown for instance by fluorene derivatives. Artificial photosynthesis, photocatalysis, solar cells, molecular optoelectronics are some of its important applications [1].High Temperature Powder X-Ray Diffraction (XRD) techniques were used to explore in situ possible crystalline changes in some of these compounds. XRD pattern analysis [2], allowed evaluating their response regarding chemical identity preservation in relation to their crystal structures in between room temperature and 400 °C [2]. Those results were also investigated by using Thermal Analysis (TA) techniques. The application of those techniques will help us to investigate and understand the optical and electro-conductive properties of fluorene derivatives.