Lanthanide Compounds with Fluorinated Aryloxide Ligands: Near-Infrared Emission from Nd, Tm, and Er

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• 作者：Kieran Norton ; G. A. Kumar ; Jennifer L. Dilks ; Thomas J. Emge ; Richard E. Riman ; Mikhail G. Brik ; John G. Brennan
• 刊名：Inorganic Chemistry
• 出版年：2009
• 出版时间：April 20, 2009
• 年：2009
• 卷：48
• 期：8
• 页码：3573-3580
• 全文大小：277K
• 年卷期：v.48,no.8(April 20, 2009)
• ISSN：1520-510X

文摘

Ln(OC₆F₅)₃ form stable, isolable compounds with 1,2-dimethoxyethane (DME). Monomeric (DME)₂Ln(OC₆F₅)₃ (Ln = Nd, Er, Tm) adopt seven coordinate structures with two chelating DME and three terminal phenoxide ligands. Both (py)₄Er(OC₆F₅)₃ and (THF)₃Yb(OC₆F₅)₃ were also prepared and structurally characterized, with the latter being a mer-octahedral compound with bond lengths that are geometry dependent. Emission experiments on crystalline powders of the Nd(III), Tm(III), and Er(III) DME derivatives show that these compounds are highly emissive near-infrared sources.