Synthesis, structure, theoretical studies and luminescent properties of a ternary erbium(III) complex with acetylacetone and bathophenanthroline ligands

Pablo Martín-Ramos, Pedro S. Pereira Silva, Pedro Chamorro-Posada, Manuela Ramos Silva, Bruce F. Milne, Fernando Nogueira, Jesús Martín-Gil

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

A novel erbium(III) complex with acetylacetone (Hacac) and bathophenanthroline (4,7-diphenyl-1,10-phenanthroline, bath) ligands, formulated as [Er(acac)3(bath)], has been characterized by elemental analysis, X-ray diffraction, thermogravimetric analysis, Fourier transform infrared spectroscopy, Raman spectroscopy, absorption and emission spectroscopies. In the theoretical part of this study, semi-empirical quantum chemistry methods using AM1, PM3, PM6 and PM7 models have been employed to predict the structure of the complex, calculate the geometric and crystallographic parameters, and make comparisons with spectroscopic data using INDO/S-CI calculations. Real-time time-dependent density-functional theory (TDDFT) has also been used to calculate the optical absorption spectrum of the complex in the gas phase.
Original languageEnglish
Pages (from-to)41-49
Number of pages9
JournalJournal of Luminescence
Volume162
Early online date21 Feb 2015
DOIs
Publication statusPublished - 1 Jun 2015
Externally publishedYes

Bibliographical note

Acknowledgements: The authors would like to thank Dr. M. Salvalaggio (Instituto Eni
Donegani) and Prof. Carlos Zaldo (ICMM) for their help with the ex-
citation spectrum and the lifetime measurements, respectively. P.
Martín-Ramos and P. S. Pereira da Silva acknowledge Grants for Re-
search on Energy and the Environment 2013 and FCT (Scholarship
SFRH/BPD/84173/2012), respectively, for their financial support.
CEMDRX group is grateful to Fundação para a Ciência e a Tecnologia
(FCT) for providing funds under Grant PEst-C/FIS/UI0036/2011. UVa
group acknowledges financial support of Junta de Castilla y León
through Project VA300A12-1.

Keywords

  • β-diketonate
  • Erbium(III)
  • MOPAC
  • Sparkle
  • TDDFT

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