abstract
Research on luminescent tetrakis coordination compounds containing trivalent lanthanide ions (Ln3+) has greatly increased in the last two decades owing to their unique spectroscopic properties and advantages over traditional tris compounds. In this review, we target the synthesis, crystal structure, and luminescence properties of Ln3+ tetrakis coordination compounds Q[Ln(L)4] as molecular light emitters with various classes of ligands (L: beta-diketonates, carbacylamidophosphonates, sulfonylamidophosphonates, alkyldithiocarbamate and carboxylates) and different counterions (Q+). Moreover, we describe their special photophysical features and the potential of lanthanide tetrakis complexes in molecular design to obtain efficient luminescent materials. It is also discussed the relationship between structural data and experimental-theoretical approaches for the modeling of luminescence properties of this class of compounds. Additionally, we highlight some potential applications of Ln3+ tetrakis coordination compounds as efficient luminescent materials.
keywords
CIRCULARLY-POLARIZED LUMINESCENCE; BETA-DIKETONATE COMPLEX; INTRAMOLECULAR ENERGY-TRANSFER; PHOSPHORO-AZO DERIVATIVES; SINGLE-SOURCE PRECURSOR; EMISSION QUANTUM YIELD; EFFECTIVE IONIC-RADII; RARE-EARTH; CRYSTAL-STRUCTURE; HIGHLY LUMINESCENT
subject category
Chemistry
authors
Costa, IF; Blois, L; Paolini, TB; Assunça, IP; Teotonio, EES; Felinto, MCFC; Moura, RT ; Longo, RL; Faustino, WM; Carlos, LD; Malta, OL; Neto, ANC; Brito, HF
our authors
Albano Neto Carneiro Neto
Junior Researcher
Luís Carlos
Full professorProjects
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)
acknowledgements
The authors are grateful for the financial support from Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP: No 2021/08111-2 H.F.B., M.C.F.C.F.; 2020/16795-6 L.B.; 2022/12709-3 I.F.C.) , Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq: No. 308872/2022-3 H.F.B.; 314032/2021/5 M.C.F.C.F.) , the Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) . E.E. S. Teotonio also thanks the Universidade Federal da Paraiba (PRODUTI-VIDADE UFPB 03/2020, PVA13345-2020) , CNPQ: 313195/2018-8 and CAPES/DAAD: 88887.647236/2021-00 and 88887.371434/2019-00 for the financial support. This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020 & LA/P/0006/2020 and Shape of Water (PTDC/NAN-PRO/3881/2020) financed by Portuguese funds through the FCT/MEC (PIDDAC) .