Bifunctional Mixed-Lanthanide\nCyano-Bridged Coordination Polymers Ln&lt;sub&gt;0.5&lt;/sub&gt;Ln′&lt;sub&gt;0.5&lt;/sub&gt;(H&lt;sub&gt;2&lt;/sub&gt;O)&lt;sub&gt;5&lt;/sub&gt;[W(CN)&lt;sub&gt;8&lt;/sub&gt;] (Ln/Ln′\n= Eu&lt;sup&gt;3+&lt;/sup&gt;/Tb&lt;sup&gt;3+&lt;/sup&gt;, Eu&lt;sup&gt;3+&lt;/sup&gt;/Gd&lt;sup&gt;3+&lt;/sup&gt;, Tb&lt;sup&gt;3+&lt;/sup&gt;/Sm&lt;sup&gt;3+&lt;/sup&gt;)

Elena Chelebaeva (2053177); Jérôme Long (1549702); Joulia Larionova (1549708); Rute A. S. Ferreira (1555969); Luis D. Carlos (2053180); Filipe A. Almeida Paz (1506964); José B. R. Gomes (2053174); Alexander Trifonov (1393960); Christian Guérin (1813663); Yannick Guari (1549699)

JOURNAL ARTICLE

Bifunctional Mixed-Lanthanide\nCyano-Bridged Coordination Polymers Ln0.5Ln′0.5(H2O)5[W(CN)8] (Ln/Ln′\n= Eu3+/Tb3+, Eu3+/Gd3+, Tb3+/Sm3+)

Elena Chelebaeva (2053177)Jérôme Long (1549702)Joulia Larionova (1549708)Rute A. S. Ferreira (1555969)Luis D. Carlos (2053180)Filipe A. Almeida Paz (1506964)José B. R. Gomes (2053174)Alexander Trifonov (1393960)Christian Guérin (1813663)Yannick Guari (1549699)

Year: 2016 Journal: OPAL (Open@LaTrobe) (La Trobe University) Publisher: La Trobe University

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Abstract

A new family of mixed-lanthanide cyano-bridged coordination\npolymers Ln0.5Ln′0.5(H2O)5[W(CN)8] (where Ln/Ln′ = Eu3+/Tb3+, Eu3+/Gd3+, and Tb3+/Sm3+) containing two lanthanide and one transition metal\nions were obtained and characterized by X-ray diffraction, photoluminescence\nspectroscopy, magnetic analyses, and theoretical computation. These\ncompounds are isotypical and crystallize in the tetragonal system P4/nmm forming two-dimensional grid-like\nnetworks. They present a magnetic ordering at low temperature and\ndisplay the red Eu3+ (5D0 → 7F0–4) and green Tb3+ (5D4 → 7F6–2) characteristic\nphotoluminescence. The Tb0.5Eu0.5(H2O)5[W(CN)8] compound presents therefore green\nand red emission and shows Tb3+-to-Eu3+ energy\ntransfer.

Keywords:

Bifunctional Polymer Lanthanide Tetragonal crystal system Transition metal Crystal structure

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Metal-Organic Frameworks: Synthesis and Applications

Physical Sciences → Chemistry → Inorganic Chemistry

Magnetism in coordination complexes

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Lanthanide and Transition Metal Complexes

Physical Sciences → Materials Science → Materials Chemistry

Bifunctional Mixed-Lanthanide\nCyano-Bridged Coordination Polymers Ln<sub>0.5</sub>Ln′<sub>0.5</sub>(H<sub>2</sub>O)<sub>5</sub>[W(CN)<sub>8</sub>] (Ln/Ln′\n= Eu<sup>3+</sup>/Tb<sup>3+</sup>, Eu<sup>3+</sup>/Gd<sup>3+</sup>, Tb<sup>3+</sup>/Sm<sup>3+</sup>)

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