Luminescence enhancement of the Tb(III) ion with the thenoyltrifluoroacetonate ligand acting as an efficient sensitizer

Ercules E. S. Teotonio, Francisco A. Silva, Dariston K. S. Pereira, Lidiaine M. Santo, Hermi F. Brito, Wagner M. Faustino, Maria Claudia F. C. Felinto, Regina Helena Santos, Rodolfo Moreno-Fuquen, Alan R. Kennedy, Denise Gilmore

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The synthesis, structural investigation, and photophysical properties of the complex [Tb(TTA)(2)(NO3) (TPPO)(2)] are reported. Unlike the analog tris-diketonate complex [Tb(TTA)(3)(TPPO)(2)], the new complex presents abnormally high luminescence intensity centered on the terbium ion. Our results clearly suggest a higher energy transfer efficiency from the TEA antenna ligand to the Tb(III) ion in the bis-diketonate complex compared with that in the tris-diketonate complex. A mechanism involving the increasing of triplet state energy when one TTA ligand is replaced by the NO3- group in the first coordination sphere is suggested and experimentally investigated to explain the anomalous luminescence properties of the new complex [Tb(TTA)(2)(NO3)(TPPO)(2)].

Original languageEnglish
Pages (from-to)1391-1395
Number of pages5
JournalInorganic Chemistry Communications
Volume13
Issue number12
DOIs
Publication statusPublished - Dec 2010

Fingerprint

Luminescence
Ligands
Terbium
Ions
luminescence
ligands
augmentation
terbium
Energy transfer
Electron energy levels
atomic energy levels
ions
antennas
energy transfer
analogs
Antennas
synthesis
energy

Keywords

  • terbium
  • luminescence
  • thenoyltrifluoroacetonate
  • sensitizer
  • energy transfer
  • intramolecular energy-transfer
  • complexes
  • photoluminescent
  • excitation
  • spectra

Cite this

Teotonio, E. E. S., Silva, F. A., Pereira, D. K. S., Santo, L. M., Brito, H. F., Faustino, W. M., ... Gilmore, D. (2010). Luminescence enhancement of the Tb(III) ion with the thenoyltrifluoroacetonate ligand acting as an efficient sensitizer. Inorganic Chemistry Communications, 13(12), 1391-1395. https://doi.org/10.1016/j.inoche.2010.07.043
Teotonio, Ercules E. S. ; Silva, Francisco A. ; Pereira, Dariston K. S. ; Santo, Lidiaine M. ; Brito, Hermi F. ; Faustino, Wagner M. ; Felinto, Maria Claudia F. C. ; Santos, Regina Helena ; Moreno-Fuquen, Rodolfo ; Kennedy, Alan R. ; Gilmore, Denise. / Luminescence enhancement of the Tb(III) ion with the thenoyltrifluoroacetonate ligand acting as an efficient sensitizer. In: Inorganic Chemistry Communications. 2010 ; Vol. 13, No. 12. pp. 1391-1395.
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title = "Luminescence enhancement of the Tb(III) ion with the thenoyltrifluoroacetonate ligand acting as an efficient sensitizer",
abstract = "The synthesis, structural investigation, and photophysical properties of the complex [Tb(TTA)(2)(NO3) (TPPO)(2)] are reported. Unlike the analog tris-diketonate complex [Tb(TTA)(3)(TPPO)(2)], the new complex presents abnormally high luminescence intensity centered on the terbium ion. Our results clearly suggest a higher energy transfer efficiency from the TEA antenna ligand to the Tb(III) ion in the bis-diketonate complex compared with that in the tris-diketonate complex. A mechanism involving the increasing of triplet state energy when one TTA ligand is replaced by the NO3- group in the first coordination sphere is suggested and experimentally investigated to explain the anomalous luminescence properties of the new complex [Tb(TTA)(2)(NO3)(TPPO)(2)].",
keywords = "terbium, luminescence, thenoyltrifluoroacetonate, sensitizer, energy transfer, intramolecular energy-transfer, complexes, photoluminescent, excitation, spectra",
author = "Teotonio, {Ercules E. S.} and Silva, {Francisco A.} and Pereira, {Dariston K. S.} and Santo, {Lidiaine M.} and Brito, {Hermi F.} and Faustino, {Wagner M.} and Felinto, {Maria Claudia F. C.} and Santos, {Regina Helena} and Rodolfo Moreno-Fuquen and Kennedy, {Alan R.} and Denise Gilmore",
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Teotonio, EES, Silva, FA, Pereira, DKS, Santo, LM, Brito, HF, Faustino, WM, Felinto, MCFC, Santos, RH, Moreno-Fuquen, R, Kennedy, AR & Gilmore, D 2010, 'Luminescence enhancement of the Tb(III) ion with the thenoyltrifluoroacetonate ligand acting as an efficient sensitizer', Inorganic Chemistry Communications, vol. 13, no. 12, pp. 1391-1395. https://doi.org/10.1016/j.inoche.2010.07.043

Luminescence enhancement of the Tb(III) ion with the thenoyltrifluoroacetonate ligand acting as an efficient sensitizer. / Teotonio, Ercules E. S.; Silva, Francisco A.; Pereira, Dariston K. S.; Santo, Lidiaine M.; Brito, Hermi F.; Faustino, Wagner M.; Felinto, Maria Claudia F. C.; Santos, Regina Helena; Moreno-Fuquen, Rodolfo; Kennedy, Alan R.; Gilmore, Denise.

In: Inorganic Chemistry Communications, Vol. 13, No. 12, 12.2010, p. 1391-1395.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Luminescence enhancement of the Tb(III) ion with the thenoyltrifluoroacetonate ligand acting as an efficient sensitizer

AU - Teotonio, Ercules E. S.

AU - Silva, Francisco A.

AU - Pereira, Dariston K. S.

AU - Santo, Lidiaine M.

AU - Brito, Hermi F.

AU - Faustino, Wagner M.

AU - Felinto, Maria Claudia F. C.

AU - Santos, Regina Helena

AU - Moreno-Fuquen, Rodolfo

AU - Kennedy, Alan R.

AU - Gilmore, Denise

PY - 2010/12

Y1 - 2010/12

N2 - The synthesis, structural investigation, and photophysical properties of the complex [Tb(TTA)(2)(NO3) (TPPO)(2)] are reported. Unlike the analog tris-diketonate complex [Tb(TTA)(3)(TPPO)(2)], the new complex presents abnormally high luminescence intensity centered on the terbium ion. Our results clearly suggest a higher energy transfer efficiency from the TEA antenna ligand to the Tb(III) ion in the bis-diketonate complex compared with that in the tris-diketonate complex. A mechanism involving the increasing of triplet state energy when one TTA ligand is replaced by the NO3- group in the first coordination sphere is suggested and experimentally investigated to explain the anomalous luminescence properties of the new complex [Tb(TTA)(2)(NO3)(TPPO)(2)].

AB - The synthesis, structural investigation, and photophysical properties of the complex [Tb(TTA)(2)(NO3) (TPPO)(2)] are reported. Unlike the analog tris-diketonate complex [Tb(TTA)(3)(TPPO)(2)], the new complex presents abnormally high luminescence intensity centered on the terbium ion. Our results clearly suggest a higher energy transfer efficiency from the TEA antenna ligand to the Tb(III) ion in the bis-diketonate complex compared with that in the tris-diketonate complex. A mechanism involving the increasing of triplet state energy when one TTA ligand is replaced by the NO3- group in the first coordination sphere is suggested and experimentally investigated to explain the anomalous luminescence properties of the new complex [Tb(TTA)(2)(NO3)(TPPO)(2)].

KW - terbium

KW - luminescence

KW - thenoyltrifluoroacetonate

KW - sensitizer

KW - energy transfer

KW - intramolecular energy-transfer

KW - complexes

KW - photoluminescent

KW - excitation

KW - spectra

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U2 - 10.1016/j.inoche.2010.07.043

DO - 10.1016/j.inoche.2010.07.043

M3 - Article

VL - 13

SP - 1391

EP - 1395

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

SN - 1387-7003

IS - 12

ER -