Investigation of the Photophysical Properties of a Eu3+ Coordination Polymer Bearing an α-Nitrile Substituted β-Diketonate Ligand via Emission and Ultrafast Transient Absorption Spectroscopy

Reid, Brodie L, Moore, Evan G, Skelton, Brian W, Ogden, Mark I and Massi, Massimiliano (2015) Investigation of the Photophysical Properties of a Eu3+ Coordination Polymer Bearing an α-Nitrile Substituted β-Diketonate Ligand via Emission and Ultrafast Transient Absorption Spectroscopy. Australian Journal of Chemistry, 68 9: 1392-1398. doi:10.1071/CH15253


Author Reid, Brodie L
Moore, Evan G
Skelton, Brian W
Ogden, Mark I
Massi, Massimiliano
Title Investigation of the Photophysical Properties of a Eu3+ Coordination Polymer Bearing an α-Nitrile Substituted β-Diketonate Ligand via Emission and Ultrafast Transient Absorption Spectroscopy
Journal name Australian Journal of Chemistry   Check publisher's open access policy
ISSN 0004-9425
1445-0038
Publication date 2015-01-01
Year available 2015
Sub-type Article (original research)
DOI 10.1071/CH15253
Open Access Status Not yet assessed
Volume 68
Issue 9
Start page 1392
End page 1398
Total pages 7
Place of publication Clayton, Victoria, Australia
Publisher CSIRO Publishing
Language eng
Formatted abstract
Reaction of the β-diketone ligand, 2-cyano-1,3-phenyl-1,3-propandione (LH), with hydrated EuCl3 in the presence of 1,10-phenanthroline (Phen), results in the crystallisation of a one-dimensional Eu3+ coordination polymer of formulation [Eu(Phen)(L)3], formed by coordination of the nitrile group of an O,O′-bound ligand to a neighbouring metal centre. An investigation of the metal-centred emission of the polymer, both in the solid state and solution, revealed red emission characterised by relatively long-lived excited state lifetimes and high intrinsic quantum yields. However, analysis of the overall quantum yield and sensitisation efficiency reveals that ultrafast processes in the ligand potentially inhibit Eu3+ sensitisation. Further investigations into these processes using transient absorption spectroscopy suggest that substitution at the α-C position may significantly decrease sensitisation via the antenna effect.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Chemistry and Molecular Biosciences
 
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Created: Thu, 20 Aug 2015, 21:11:11 EST by Prycilla Rehm on behalf of School of Chemistry & Molecular Biosciences