Structure and efficient luminescence upconversion of Ln(iii) aromatic N-oxide coordination polymers

Chong, Bowie S. K. and Moore, Evan G. (2016) Structure and efficient luminescence upconversion of Ln(iii) aromatic N-oxide coordination polymers. Dalton Transactions, 45 30: 12200-12205. doi:10.1039/c6dt01828a


Author Chong, Bowie S. K.
Moore, Evan G.
Title Structure and efficient luminescence upconversion of Ln(iii) aromatic N-oxide coordination polymers
Formatted title
Structure and efficient luminescence upconversion of Ln(lll) aromatic N-oxide coordination polymers
Journal name Dalton Transactions   Check publisher's open access policy
ISSN 1477-9234
1477-9226
Publication date 2016-07-14
Sub-type Article (original research)
DOI 10.1039/c6dt01828a
Open Access Status Not Open Access
Volume 45
Issue 30
Start page 12200
End page 12205
Total pages 6
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Collection year 2017
Language eng
Formatted abstract
A series of lanthanide-based coordination polymers {[Yb1−xErx(4,4′-bpdo)3(H2O)2](CF3SO3)3} were synthesised by solvent diffusion techniques, where 4,4′-bpdo = 4,4′-bipyridine-N,N′-dioxide, and using differing mole fractions of Yb(III) and Er(III) which were systematically varied (x = 0, 0.05, 0.20, 0.50 and 1). All of the materials obtained were characterised using elemental analyses, single-crystal X-ray diffraction (SXRD) and solid-state photoluminescence studies. Structurally, the coordination polymers crystallise as an isomorphous series of infinite 2D sheets, which contain two inner sphere water molecules, and are isostructural with a previously characterised homometallic Yb(III) compound. In addition to the normal Near Infra-Red (NIR) luminescence, these compounds also demonstrate upconversion emission upon 980 nm excitation. Upconversion luminescence measurements reveal visible emission in the red, green, and blue regions corresponding to the 2H11/24I15/2, 4F9/2 4I15/2 and 2H9/2 4I15/2 transitions of the Er(III) cation upon two and three-photon excitation. We also observed weak emission from the Er(III) cation in the UV region for the first time in a Ln-MOF based material.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
School of Chemistry and Molecular Biosciences
 
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Created: Fri, 22 Jul 2016, 09:42:17 EST by Mrs Louise Nimwegen on behalf of School of Chemistry & Molecular Biosciences