resumo
Materials based on Eu3+ and Tb3+ coordination compounds are of great interest due to their strong red and green luminescence. Appropriate selection of ligands plays a huge role in optimizing their photophysical properties. Another very helpful instrument for such optimization is theoretical modelling, which permits the prediction of the emissive properties of materials through intramolecular energy transfer analysis. The ligands that allow for achieving high efficiency of Eu3+ and Tb3+ emissions include carbacylamidophosphates (CAPh, HL). In this brief review, we summarize recent research for lanthanides CAPh-based coordination compounds of general formulas Cat[LnL](4), [LnL(3)Q] and [Ln(HL)(3)(NO3)(3)], where Cat(+) = Cs+, NEt4(+), PPh4+ and Q = 1,10-phenanthroline, 2,2-bipyridine or triphenylphosphine oxide, involving the use of thermal gravimetric analysis, X-ray analysis, and absorption and luminescence spectroscopy. We carried out a comparison with selected Ln(3+) beta-diketonates. Possibilities and developments of theoretical calculations on energy transfer rates are also presented.
palavras-chave
INTRAMOLECULAR ENERGY-TRANSFER; LANTHANIDE AQUO IONS; EMISSION QUANTUM YIELD; DIPHENYL-N-BENZOYLAMIDOPHOSPHATE; INDOLE-DERIVED ACETYLACETONES; RARE EARTH(III) COMPLEXES; LUMINESCENT PROPERTIES; CRYSTAL-STRUCTURE; SPECTROSCOPIC PROPERTIES; EUROPIUM(III) COMPLEXES
categoria
Chemistry
autores
Kariaka, NS; Lipa, A; Neto, ANC; Malta, OL; Gawryszewska, P; Amirkhanov, VM
nossos autores
Albano Neto Carneiro Neto
Investigador JúniorProjectos
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
agradecimentos
FCT (Fundacao para a Ciencia e Tecnologia, Portugal)-The Shape of Water Project-Grant number: PTDC/NAN-PRO/3881/2020. FCT (FundacaYo para a Ciencia e Tecnologia, Portugal)-LogicALL project-Grant number: PTDC/CTM-CTM/0340/2021. Ministry of Education and Science of Ukraine (Grant 22BF037-04). This work was developed within the scope of the projects CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020, and LA/P/0006/2020, The Shape of Water (PTDC/NAN-PRO/3881/2020), and LogicALL (PTDC/CTM-CTM/0340/2021), financed by national funds through the FCT/MCTES (PIDDAC).