Issue 46, 2020

Visible and NIR emitting Yb(iii) and Er(iii) complexes sensitized by β-diketonates and phenanthroline derivatives

Abstract

Five new complexes namely, [Er(bta)3(me-phen)] (1), [Yb(bta)3(me-phen)] (2), [Gd(bta)3(me-phen)] (3), [Yb(bta)3(pyz-phen)] (4), and [Er(tta)3(pyz-phen)] (5) have been prepared with the fluorinated β-diketone ligands Hbta and Htta (Hbta = benzoyltrifluoroacetone and Htta = 2-thenoyltrifluoroacetone) combined with the azacyclo phenanthroline-derivatives, 5-methyl-1,10-phenanthroline (me-phen) and pyrazino[2,3-f][1,10]phenanthroline (pyz-phen). The crystal structures of 2, 4 and 5 have been solved by single-crystal X-ray diffraction. PXRD patterns show that 1–3 are isostructural. All the compounds exhibit a molecular structure with the metal atom in an eight-coordination geometry. The photophysical processes involved in the photoluminescence of the complexes are investigated; as a result, the radiative lifetimes (τLn), the 4f–4f emission quantum efficiencies (ΦLn) and the energy-levels diagram are calculated.

Graphical abstract: Visible and NIR emitting Yb(iii) and Er(iii) complexes sensitized by β-diketonates and phenanthroline derivatives

Supplementary files

Article information

Article type
Paper
Submitted
24 jun 2020
Accepted
19 jul 2020
First published
24 jul 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 27815-27823

Visible and NIR emitting Yb(III) and Er(III) complexes sensitized by β-diketonates and phenanthroline derivatives

G. Brito-Santos, B. Gil-Hernández, I. R. Martín, R. Guerrero-Lemus and J. Sanchiz, RSC Adv., 2020, 10, 27815 DOI: 10.1039/D0RA05539E

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements