Probing the effect of beta-triketonates in visible and NIR emitting lanthanoid complexes

Laura Abad Galan; Brodie L. Reid; Stefano Stagni; Alexandre N. Sobolev; Brian W. Skelton; Evan G. Moore; Garry S. Hanan; Eli Zysman-Colman; Mark I. Ogden; Massimiliano Massi

doi:10.1039/c8dt00945g

Probing the effect of beta-triketonates in visible and NIR emitting lanthanoid complexes

Laura Abad Galan, Brodie L. Reid, Stefano Stagni, Alexandre N. Sobolev, Brian W. Skelton, Evan G. Moore, Garry S. Hanan, Eli Zysman-Colman, Mark I. Ogden, Massimiliano Massi

School of Molecular Sciences

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

12 Citations (Scopus)

Abstract

An isomorphous series of lanthanoid complexes containing tribenzoylmethanide (tbm) and 1,10-phenanthroline (phen) ligands has been synthesised and structurally characterised. These complexes, formulated as [Ln(phen)(tbm)(3)] (Ln = Eu3+, Er3+ and Yb3+), were compared with analogous dibenzoylmethanide (dbm) [Ln(phen)(dbm)(3)] complexes to investigate the effect of changing -diketonate to -triketonate ligands on the photophysical properties of the complex. The photophysical properties for the Eu3+ complexes were similar for both systems, whereas a modest enhancement was observed for Yb3+ and Er3+ moving from the dbm to the tbm complexes. A detailed study of the NIR photophysical properties was achieved by adapting the integrating sphere method for the calculation of overall quantum yields in the solid state.

Original language	English
Pages (from-to)	7956-7964
Number of pages	9
Journal	Dalton Transactions
Volume	47
Issue number	24
DOIs	https://doi.org/10.1039/c8dt00945g
Publication status	Published - 28 Jun 2018

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title = "Probing the effect of beta-triketonates in visible and NIR emitting lanthanoid complexes",

abstract = "An isomorphous series of lanthanoid complexes containing tribenzoylmethanide (tbm) and 1,10-phenanthroline (phen) ligands has been synthesised and structurally characterised. These complexes, formulated as [Ln(phen)(tbm)(3)] (Ln = Eu3+, Er3+ and Yb3+), were compared with analogous dibenzoylmethanide (dbm) [Ln(phen)(dbm)(3)] complexes to investigate the effect of changing -diketonate to -triketonate ligands on the photophysical properties of the complex. The photophysical properties for the Eu3+ complexes were similar for both systems, whereas a modest enhancement was observed for Yb3+ and Er3+ moving from the dbm to the tbm complexes. A detailed study of the NIR photophysical properties was achieved by adapting the integrating sphere method for the calculation of overall quantum yields in the solid state.",

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author = "Galan, {Laura Abad} and Reid, {Brodie L.} and Stefano Stagni and Sobolev, {Alexandre N.} and Skelton, {Brian W.} and Moore, {Evan G.} and Hanan, {Garry S.} and Eli Zysman-Colman and Ogden, {Mark I.} and Massimiliano Massi",

year = "2018",

month = jun,

day = "28",

doi = "10.1039/c8dt00945g",

language = "English",

volume = "47",

pages = "7956--7964",

journal = "Dalton Transactions",

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T1 - Probing the effect of beta-triketonates in visible and NIR emitting lanthanoid complexes

AU - Galan, Laura Abad

AU - Reid, Brodie L.

AU - Stagni, Stefano

AU - Sobolev, Alexandre N.

AU - Skelton, Brian W.

AU - Moore, Evan G.

AU - Hanan, Garry S.

AU - Zysman-Colman, Eli

AU - Ogden, Mark I.

AU - Massi, Massimiliano

PY - 2018/6/28

Y1 - 2018/6/28

N2 - An isomorphous series of lanthanoid complexes containing tribenzoylmethanide (tbm) and 1,10-phenanthroline (phen) ligands has been synthesised and structurally characterised. These complexes, formulated as [Ln(phen)(tbm)(3)] (Ln = Eu3+, Er3+ and Yb3+), were compared with analogous dibenzoylmethanide (dbm) [Ln(phen)(dbm)(3)] complexes to investigate the effect of changing -diketonate to -triketonate ligands on the photophysical properties of the complex. The photophysical properties for the Eu3+ complexes were similar for both systems, whereas a modest enhancement was observed for Yb3+ and Er3+ moving from the dbm to the tbm complexes. A detailed study of the NIR photophysical properties was achieved by adapting the integrating sphere method for the calculation of overall quantum yields in the solid state.

AB - An isomorphous series of lanthanoid complexes containing tribenzoylmethanide (tbm) and 1,10-phenanthroline (phen) ligands has been synthesised and structurally characterised. These complexes, formulated as [Ln(phen)(tbm)(3)] (Ln = Eu3+, Er3+ and Yb3+), were compared with analogous dibenzoylmethanide (dbm) [Ln(phen)(dbm)(3)] complexes to investigate the effect of changing -diketonate to -triketonate ligands on the photophysical properties of the complex. The photophysical properties for the Eu3+ complexes were similar for both systems, whereas a modest enhancement was observed for Yb3+ and Er3+ moving from the dbm to the tbm complexes. A detailed study of the NIR photophysical properties was achieved by adapting the integrating sphere method for the calculation of overall quantum yields in the solid state.

KW - INTRAMOLECULAR ENERGY-TRANSFER

KW - LUMINESCENCE QUANTUM YIELDS

KW - EXCITATION-ENERGY

KW - LIGANDS

KW - YTTERBIUM(III)

KW - STATE

KW - IONS

U2 - 10.1039/c8dt00945g

DO - 10.1039/c8dt00945g

M3 - Article

SN - 1477-9226

VL - 47

SP - 7956

EP - 7964

JO - Dalton Transactions

JF - Dalton Transactions

IS - 24

ER -

Probing the effect of beta-triketonates in visible and NIR emitting lanthanoid complexes

Abstract

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