The structures of three lanthanide orthophosphates

Milligan, W. O.; Mullica, D. F.; Beall, Gary W.; Boatner, L. A.

doi:10.1016/s0020-1693(00)82791-7

Cited by 77 publications

(58 citation statements)

References 9 publications

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“…Views of the molecular arrangement of tetragonal HoPO 4 along the a and c axes are presented in Figure 7A and Figure 7B, respectively. [35] Since the tetragonal heavy lanthanide phosphates and YPO 4 are isostructural, their structural features are identical. It can be seen that the molecular packing arrangement of tetragonal HoPO 4 is neither a one-dimensional infinite chain structure nor a twodimensional lamellar structure, but a three-dimensional network structure, which, in the view of Fang et al, is not subject to anisotropic growth.…”

Section: Resultsmentioning

confidence: 99%

Crystal Structures, Anisotropic Growth, and Optical Properties: Controlled Synthesis of Lanthanide Orthophosphate One‐Dimensional Nanomaterials

Yan

Sun

Wang

et al. 2005

Chemistry A European J

221

142

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The fundamental understanding of the relationship between crystal structure and the dynamic processes of anisotropic growth on the nanoscale, and exploration of the key factors governing the evolution of physical properties in functional nanomaterials, have become two of the most urgent and challenging issues in the fabrication and exploitation of functional nanomaterials with designed properties and the development of nanoscale devices. Herein, we show how structural and kinetic factors govern the tendency for anisotropic growth of such materials under hydrothermal conditions, and how the crystal structure and morphology influence the optical properties of Ln3+-doped nanocrystals. The synthesis of phase-pure and single-crystalline monoclinic, hexagonal, and tetragonal one-dimensional LnPO4 nanostructures of different aspect ratios by means of kinetically controlled hydrothermal growth processes is demonstrated. It is shown that the tendency for anisotropic growth under hydrothermal conditions can be enhanced simply by modifying the chemical potentials of species in the reaction solution through the use of carefully selected chelating ligands. A systematic study of the photoluminescence of various Eu3+-doped lanthanide phosphates has revealed that the optical properties of these nanophosphors are strongly dependent on their crystal structures and morphologies.

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Section: Resultsmentioning

confidence: 99%

Crystal Structures, Anisotropic Growth, and Optical Properties: Controlled Synthesis of Lanthanide Orthophosphate One‐Dimensional Nanomaterials

Yan

Sun

Wang

et al. 2005

Chemistry A European J

221

142

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show abstract

“…118,[130][131][132] Nevertheless, for the rare earth elements located in the middle of the series, the limit between both families appears to be strongly dependent on the chemical way of synthesis. Indeed, several authors report the formation of TbPO 4 133-135 monazites from the heat treatment of the corresponding rhabdophane (REEPO 4 , 0.5 H 2 O) precursor.…”

Section: III Po 4 Compoundsmentioning

confidence: 99%

Crystal chemistry of the monazite structure

Clavier

Podor

Dacheux

2011

Journal of the European Ceramic Society

328

238

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“…Although we have no exact structural data in describing rhabdophane and orthorhombic polymorphs, their close relation to the monoclinic monazite and tetragonal xenotime phases hints that the hexagonal and orthorhombic phases might share some basic factors with monoclinic and tetragonal phases, such as the [PO 4 ]-Ln-[PO 4 ] chains along the preferred crystal growth direction [20,[29][30][31].…”

Section: Article In Pressmentioning

confidence: 95%