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Structures and luminescence properties of multinuclear lanthanide polyoxometalates

Anna Kaczmarek (UGent) , Kristof Van Hecke (UGent) and Rik Van Deun (UGent)
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Abstract
Polyoxometalates (POMs) are discrete anionic metal-oxygen clusters of early transition metals usually W, Mo, or V in a high oxidation state. They exhibit a huge variety in their size, shape and nuclearities.1 Although many POMs have been reported in literature, the amount of known lanthanide POMs is still a growing field. A very interesting class of POMs are multinuclear POMs due to their fascinating variety in structures as well as unusual properties. Multinuclear POMs can be assembled from either isopoly- or heteropoly- ions. Among the multinuclear structures composed from heteropoly anions ones built from Keggin and Dawson type POMs are the most often investigated.2 Only few cases where Liqvist or Anderson type POMs are the basic building unit of multinuclear POMs have so far been described. Here we report our investigation on the structural trends of a class of multinuclear LnPOMs assembled from a [Mo7O24]6- polyanion. We have also carried out a detailed study of the visible and near-infrared luminescence properties of a family of these materials (where Ln3+ = Eu3+, Tb3+, Sm3+, Dy3+, Nd3+, Er3+, Yb3+). What is more, we have studied a rare case of low percentage doping of emissive Ln3+ (Ln3+ = Eu3+, Tb3+, Sm3+, Dy3+, Nd3+, Er3+, Yb3+) ions into a multinuclear lanthanum POM, [La4(MoO4)-(Mo7O24)4]14- , which resulted in very promising luminescence properties.

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MLA
Kaczmarek, Anna, et al. “Structures and Luminescence Properties of Multinuclear Lanthanide Polyoxometalates.” Chemical Research in Flanders, Symposium Abstracts, 2016.
APA
Kaczmarek, A., Van Hecke, K., & Van Deun, R. (2016). Structures and luminescence properties of multinuclear lanthanide polyoxometalates. In Chemical Research in Flanders, Symposium abstracts. Blankenberge, Belgium.
Chicago author-date
Kaczmarek, Anna, Kristof Van Hecke, and Rik Van Deun. 2016. “Structures and Luminescence Properties of Multinuclear Lanthanide Polyoxometalates.” In Chemical Research in Flanders, Symposium Abstracts.
Chicago author-date (all authors)
Kaczmarek, Anna, Kristof Van Hecke, and Rik Van Deun. 2016. “Structures and Luminescence Properties of Multinuclear Lanthanide Polyoxometalates.” In Chemical Research in Flanders, Symposium Abstracts.
Vancouver
1.
Kaczmarek A, Van Hecke K, Van Deun R. Structures and luminescence properties of multinuclear lanthanide polyoxometalates. In: Chemical Research in Flanders, Symposium abstracts. 2016.
IEEE
[1]
A. Kaczmarek, K. Van Hecke, and R. Van Deun, “Structures and luminescence properties of multinuclear lanthanide polyoxometalates,” in Chemical Research in Flanders, Symposium abstracts, Blankenberge, Belgium, 2016.
@inproceedings{8129307,
  abstract     = {Polyoxometalates (POMs) are discrete anionic metal-oxygen clusters of early transition metals usually W, Mo, or V in a high oxidation state. They exhibit a huge variety in their size, shape and nuclearities.1 Although many POMs have been reported in literature, the amount of known lanthanide POMs is still a growing field. A very interesting class of POMs are multinuclear POMs due to their fascinating variety in structures as well as unusual properties. Multinuclear POMs can be assembled from either isopoly- or heteropoly- ions. Among the multinuclear structures composed from heteropoly anions ones built from Keggin and Dawson type POMs are the most often investigated.2 Only few cases where Liqvist or Anderson type POMs are the basic building unit of multinuclear POMs have so far been described. Here we report our investigation on the structural trends of a class of multinuclear LnPOMs assembled from a [Mo7O24]6- polyanion. We have also carried out a detailed study of the visible and near-infrared luminescence properties of a family of these materials (where Ln3+ = Eu3+, Tb3+, Sm3+, Dy3+, Nd3+, Er3+, Yb3+). What is more, we have studied a rare case of low percentage doping of emissive Ln3+ (Ln3+ = Eu3+, Tb3+, Sm3+, Dy3+, Nd3+, Er3+, Yb3+) ions into a multinuclear lanthanum POM, [La4(MoO4)-(Mo7O24)4]14- , which resulted in very promising luminescence properties.},
  author       = {Kaczmarek, Anna and Van Hecke, Kristof and Van Deun, Rik},
  booktitle    = {Chemical Research in Flanders, Symposium abstracts},
  language     = {eng},
  location     = {Blankenberge, Belgium},
  title        = {Structures and luminescence properties of multinuclear lanthanide polyoxometalates},
  year         = {2016},
}