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

doi:10.1016/j.inoche.2010.07.043

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 journal › Article › peer-review

17 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 language	English
Pages (from-to)	1391-1395
Number of pages	5
Journal	Inorganic Chemistry Communications
Volume	13
Issue number	12
DOIs	https://doi.org/10.1016/j.inoche.2010.07.043
Publication status	Published - Dec 2010

Keywords

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

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10.1016/j.inoche.2010.07.043

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Teotonio, E. E. S., Silva, F. A., Pereira, D. K. S., Santo, L. M., Brito, H. F., Faustino, W. M., Felinto, M. C. F. C., Santos, R. H., Moreno-Fuquen, R., Kennedy, A. R., & 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

@article{65bba6b008934dfdb0dcf410d1fe8c9b,

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",

year = "2010",

month = dec,

doi = "10.1016/j.inoche.2010.07.043",

language = "English",

volume = "13",

pages = "1391--1395",

journal = "Inorganic Chemistry Communications",

issn = "1387-7003",

publisher = "Elsevier B.V.",

number = "12",

}

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

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

UR - http://www.scopus.com/inward/record.url?scp=78649324701&partnerID=8YFLogxK

U2 - 10.1016/j.inoche.2010.07.043

DO - 10.1016/j.inoche.2010.07.043

M3 - Article

SN - 1387-7003

VL - 13

SP - 1391

EP - 1395

JO - Inorganic Chemistry Communications

JF - Inorganic Chemistry Communications

IS - 12

ER -

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

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

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