Eu3+ and Tb3+ Coordination Compounds with π‐conjugated Ligands: Luminescence and Structural Properties

Author:

Moraes Fernandes Nathália Maria1ORCID,Barbosa‐Reis Gustavo2ORCID,Oliveira‐Silva Diogo2ORCID,Bagatin Izilda A.1ORCID

Affiliation:

1. Department of Chemistry Universidade Federal de São Paulo - Instituto de Ciências Ambientais, Químicas e Farmacêuticas – Laboratório de Química de Calixarenos, Espectroscopia Molecular e Catálise Rua Prof. Arthur Riedel, 275, CEP 09972-270 Diadema SP Brazil.

2. Department of Chemistry Universidade Federal de São Paulo – Instituto de Ciências Ambientais, Químicas e Farmacêuticas – Grupo de Bio-Orgânica e Bioanalítica Rua Prof. Arthur Riedel, 275, CEP 09972-270 Diadema SP Brazil

Abstract

AbstractNew lanthanide‐based luminescent coordination compounds containing quinoline derivatives and 2‐(4‐hydroxyazobenzene)benzoic acid (HABA) were synthesized. Fourier transform infrared spectroscopy (FTIR), UV‐Vis spectra, Elemental analyses, Energy dispersive X‐ray fluorescence (EDXRF), and mass spectrometry (MALDI) were applied for six complexes′ structural elucidation. In addition, photoluminescence spectroscopy was performed in the solid state. Eu3+ and Tb3+ compounds linked to the π‐conjugated system described energy transfer to the metal through the antenna effect. Emission spectra depicted bands at 616–617 nm, characteristics of red light for Europium complexes, assigned as hypersensitive 5D07F2 transition, and depicted bands at 540–542 nm (green light) for Terbium complexes, assigned as 5D47F5 transition.

Funder

Lady Margaret Hall, University of Oxford

Publisher

Wiley

Subject

General Chemistry

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