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Sentitized near-infrared emission in novel neodymium complexes bearing oligothiophene derivatives as antennae
- Source :
- Materials science & engineering. B, Solid-state materials for advanced technology 146 (2008): 45–49. doi:10.1016/j.mseb.2007.07.103, info:cnr-pdr/source/autori:Rizzo F., Destri S., Porzio W., Ottonelli M., Dellepiane G., Meinardi F., Monguzzi A.,/titolo:Sentitized near-infrared emission in novel neodymium complexes bearing oligothiophene derivatives as antennae/doi:10.1016%2Fj.mseb.2007.07.103/rivista:Materials science & engineering. B, Solid-state materials for advanced technology/anno:2008/pagina_da:45/pagina_a:49/intervallo_pagine:45–49/volume:146
- Publication Year :
- 2008
-
Abstract
- A series of neodymium complexes based on (alpha-oligothiophen-2-yl)(2-hydroxy-3-methoxyphenyl)methanone moiety was prepared and studied by FTIR, NMR, optical spectroscopies. As a function of the thiophene ring number in the ligand, a variation of both stoichiometry and optical properties of the complex are observed. The solid-state ligand structure indicates a close packing and a stressed situation in enolate residues, i.e. non-coplanarity between thiophene and phenyl moieties. An un-precedent stoichiometry of complexes was observed, namely two metal and five ligands, according to both the synthesis conditions and the encumbrance of ligand with respect to ionic radius of Nd3+. This fact is attributed to the contribution to the coordination of the methoxy group. Luminescence and lifetime determination are discussed in the light of the above factors. (C) 2007 Elsevier B.V. All rights reserved.
- Subjects :
- Lanthanide
energy transfer
Near-infrared emitters
Ionic radius
lanthanide
Ligand
oligothiophenes
Mechanical Engineering
chemistry.chemical_element
near-infrared emitter
Condensed Matter Physics
Photochemistry
Neodymium
lanthanides
near-infrared emitters
chemistry.chemical_compound
chemistry
Mechanics of Materials
Lanthanides
Thiophene
Moiety
General Materials Science
Energy transfer
Oligothiophenes
Luminescence
Stoichiometry
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Materials science & engineering. B, Solid-state materials for advanced technology 146 (2008): 45–49. doi:10.1016/j.mseb.2007.07.103, info:cnr-pdr/source/autori:Rizzo F., Destri S., Porzio W., Ottonelli M., Dellepiane G., Meinardi F., Monguzzi A.,/titolo:Sentitized near-infrared emission in novel neodymium complexes bearing oligothiophene derivatives as antennae/doi:10.1016%2Fj.mseb.2007.07.103/rivista:Materials science & engineering. B, Solid-state materials for advanced technology/anno:2008/pagina_da:45/pagina_a:49/intervallo_pagine:45–49/volume:146
- Accession number :
- edsair.doi.dedup.....5eec0c81afc1fc5ceeb513088aa0fd9d