Synthesis and characterization of two fluorescent isophthalate rosamines: From solution to immobilization in solid substrates

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Queiros, C (Author) Other; Leite, A (Author) Other; Cunha Silva, L (Author) FCUP; de Castro, B (Author) Other; Maria Rangel (Author) ICBAS; Sousaraei, A (Author) Other; Cabanillas Gonzalez, J (Author) Other; Gamez, F (Author) Other; Jamardo, E (Author) Other; Vargas, AP (Author) Other; Moscoso, FG (Author) Other; Lopes Costa, T (Author) Other; Pedrosa, JM (Author) Other; Silva, AMG (Author) FCUP

Journal

Title: Dyes and Pigments

Vol. 157

Pages: 405-414

ISSN: 0143-7208

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-00P-2BR

DOI: 10.1016/j.dyepig.2018.05.005

Abstract (EN): The design of fluorescent molecules with structural features for efficient immobilization in polymeric supports or binding matrixes is an active research topic, which aims to create materials with optical and mechanical properties suitable for sensing applications. Herein, we describe the synthesis and characterization of two new fluorescent ligands prepared by a combination of a rosamine platform and an isophthalate receptor using amine and amide linkages. In order to evaluate their potential application as fluorescence sensors, the photophysical properties of the ligands were accessed by UV-Vis and photoluminescence measurements in solution and after immobilization (infiltrated in TiO2 thin films). Furthermore, molecular and electronic structures of both ligands were rationalized by DFT and TD-DFT calculations. Interesting features were found for the ligand containing an amide bond, which has shown to be less prone to aggregation and has higher emission capacity, being a promising candidate in fluorescence sensor devices.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 10