Modulation of the luminescence quantum efficiency for blue luminophor (Al(salophen))+ by ester-substituents

Virginie Béreau; Véronique Jubéra; Philippe Arnaud; Abdellah Kaiba; Philippe Guionneau; Jean Pascal Sutter

doi:10.1039/b918235g

Modulation of the luminescence quantum efficiency for blue luminophor (Al(salophen))⁺ by ester-substituents

Virginie Béreau, Véronique Jubéra, Philippe Arnaud, Abdellah Kaiba, Philippe Guionneau, Jean Pascal Sutter

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

A series of Al^III complexes of a salophen (N,N′-bis(salicylidene)-o-phenylenediamine) derivative with an ester substituent at the C5 position of the salicylidene rings have been prepared and their luminescence properties investigated. All exhibit a bright blue emission (λ _em = 478 nm) that is observed neither for other metal ions nor with the non-functionalized ligand. Moreover, the ester-R group (Me, ^tBu, Ph) was found to significantly affect the quantum yields (Φ = 12 to 20%) of the luminophor. DFT calculations have been undertaken to reveal the influence of the ester and its R-group on the frontier molecular orbitals. Preparation and photoluminescence properties in solution and solid state are reported. The crystal structure of a pyridine oxide adduct [L^tBuAl(PyO)₂]·NO₃, where L^tBu stands for the tButyl-ester functionalized Schiff base, has been solved.

Original language	English
Pages (from-to)	2070-2077
Number of pages	8
Journal	Journal of the Chemical Society. Dalton Transactions
Volume	39
Issue number	8
DOIs	https://doi.org/10.1039/b918235g
State	Published - 10 Feb 2010
Externally published	Yes

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title = "Modulation of the luminescence quantum efficiency for blue luminophor (Al(salophen))+ by ester-substituents",

abstract = "A series of AlIII complexes of a salophen (N,N′-bis(salicylidene)-o-phenylenediamine) derivative with an ester substituent at the C5 position of the salicylidene rings have been prepared and their luminescence properties investigated. All exhibit a bright blue emission (λ em = 478 nm) that is observed neither for other metal ions nor with the non-functionalized ligand. Moreover, the ester-R group (Me, tBu, Ph) was found to significantly affect the quantum yields (Φ = 12 to 20\%) of the luminophor. DFT calculations have been undertaken to reveal the influence of the ester and its R-group on the frontier molecular orbitals. Preparation and photoluminescence properties in solution and solid state are reported. The crystal structure of a pyridine oxide adduct [LtBuAl(PyO)2]·NO3, where LtBu stands for the tButyl-ester functionalized Schiff base, has been solved.",

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T1 - Modulation of the luminescence quantum efficiency for blue luminophor (Al(salophen))+ by ester-substituents

AU - Béreau, Virginie

AU - Jubéra, Véronique

AU - Arnaud, Philippe

AU - Kaiba, Abdellah

AU - Guionneau, Philippe

AU - Sutter, Jean Pascal

PY - 2010/2/10

Y1 - 2010/2/10

N2 - A series of AlIII complexes of a salophen (N,N′-bis(salicylidene)-o-phenylenediamine) derivative with an ester substituent at the C5 position of the salicylidene rings have been prepared and their luminescence properties investigated. All exhibit a bright blue emission (λ em = 478 nm) that is observed neither for other metal ions nor with the non-functionalized ligand. Moreover, the ester-R group (Me, tBu, Ph) was found to significantly affect the quantum yields (Φ = 12 to 20%) of the luminophor. DFT calculations have been undertaken to reveal the influence of the ester and its R-group on the frontier molecular orbitals. Preparation and photoluminescence properties in solution and solid state are reported. The crystal structure of a pyridine oxide adduct [LtBuAl(PyO)2]·NO3, where LtBu stands for the tButyl-ester functionalized Schiff base, has been solved.

AB - A series of AlIII complexes of a salophen (N,N′-bis(salicylidene)-o-phenylenediamine) derivative with an ester substituent at the C5 position of the salicylidene rings have been prepared and their luminescence properties investigated. All exhibit a bright blue emission (λ em = 478 nm) that is observed neither for other metal ions nor with the non-functionalized ligand. Moreover, the ester-R group (Me, tBu, Ph) was found to significantly affect the quantum yields (Φ = 12 to 20%) of the luminophor. DFT calculations have been undertaken to reveal the influence of the ester and its R-group on the frontier molecular orbitals. Preparation and photoluminescence properties in solution and solid state are reported. The crystal structure of a pyridine oxide adduct [LtBuAl(PyO)2]·NO3, where LtBu stands for the tButyl-ester functionalized Schiff base, has been solved.

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JO - Journal of the Chemical Society. Dalton Transactions

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ER -

Modulation of the luminescence quantum efficiency for blue luminophor (Al(salophen))⁺ by ester-substituents

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