title: Heterometallic Na-Y(Ln) trifluoroacetate diglyme complexes as novel single-source precursors for upconverting NaYF4 nanocrystals co-doped with Yb and Er/Tm ions.
abstract: We report synthesis of new single-source heterometallic precursors [NaLn(TFA)(4)(diglyme)] (Ln = Y, Er, Tm, Yb; TFA = trifluoroacetate), which decompose in 1-octadecene at significantly low temperature, without using any surfactant or capping reagent, to give sub-50 nm particles of cubic and/or hexagonal NaYF(4) : Yb(3+), Er(3+)/Tm(3+) materials forming well-dispersed colloidal solutions in dichloromethane and exhibiting green/blue upconversion luminescence.
authors.affiliation: Université Lyon 1, IRCELYON, 2 Avenue A. Einstein, 69626 Villeurbanne, France. mishrashashank74@rediffmail.com
authors.forename: Shashank
authors.initials: S
authors.lastname: Mishra
authors.forename: Stéphane
authors.initials: S
authors.lastname: Daniele
authors.forename: Gilles
authors.initials: G
authors.lastname: Ledoux
authors.forename: Erwann
authors.initials: E
authors.lastname: Jeanneau
authors.forename: Marie-France
authors.initials: MF
authors.lastname: Joubert
mesh_terms: D000475:Alkenes / Q000737:chemistry; D056831:Coordination Complexes / Q000737:chemistry*; D004871:Erbium / Q000737:chemistry; D005026:Ethylene Glycols / Q000737:chemistry*; D005459:Fluorides / Q000737:chemistry*; D008738:Methyl Ethers / Q000737:chemistry*; D008968:Molecular Conformation; D053758:Nanoparticles / Q000737:chemistry*; D013696:Temperature; D013932:Thulium / Q000737:chemistry; D014269:Trifluoroacetic Acid / Q000737:chemistry*; D015019:Yttrium / Q000737:chemistry*
chemical_list: D000475:Alkenes; D056831:Coordination Complexes; D005026:Ethylene Glycols; D008738:Methyl Ethers; C525362:sodium yttriumtetrafluoride; D015019:Yttrium; D004871:Erbium; D013932:Thulium; D014269:Trifluoroacetic Acid; C109760:1-octadecene; C007391:diglyme; D005459:Fluorides