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Title: Growth, structural, IR and magnetic studies of a new gadolinium metaphosphate, Gd(PO{sub 3}){sub 3}

Abstract

The crystal structure of gadolinium metaphosphate Gd(PO{sub 3}){sub 3} has been established by X-ray diffraction. This compound crystallizes in the orthorhombic system (space group C222{sub 1}, Z=4) with cell parameters: a=8.4530 (3), b=11.0576 (4) and c=7.1952 (2)A. The structure was refined to R{sub 1}=0.0234 and wR{sub 2}=0.0502 using 2180 independent reflections (I>2{sigma}(I)). Phosphorus atoms are in slightly irregular tetrahedral oxygen coordination, gadolinium atoms are in considerably distorted dodecahedral oxygen coordination. Formally, the 3D framework in the structure can be described by the PO{sub 4} tetrahedra sharing corners to form helical chains and the GdO{sub 8} polyhedra sharing edges in a zigzag fashion. The shortest Gd-Gd distance is 4.174 (2)A. The infrared spectrum of the title compound recorded at room temperature in the frequency range of 400-4000cm{sup -1}, confirm the atomic arrangement within the structure. Below T{sub C}=25K, the magnetic susceptibility evolution is characteristic of a ferromagnetic order. In the high-temperature region above 100K, the susceptibility follows a Curie-Weiss law with C=7.91cm{sup 3}Kmol{sup -1} and {theta}=9.96K.

Authors:
 [1];  [1];  [2];  [1]
  1. Laboratoire de L'Etat Solide, Faculte des Sciences de Sfax BP 802, Sfax 3018 (Tunisia)
  2. Unite de Recherche des Materiaux, Faculte des Sciences de Sfax BP 802, Sfax 3018 (Tunisia)
Publication Date:
OSTI Identifier:
20891940
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 41; Journal Issue: 11; Other Information: DOI: 10.1016/j.materresbull.2006.06.014; PII: S0025-5408(06)00254-6; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION SPECTROSCOPY; CRYSTAL GROWTH; CURIE-WEISS LAW; FREQUENCY RANGE; GADOLINIUM PHOSPHATES; INFRARED SPECTRA; MAGNETIC SUSCEPTIBILITY; ORTHORHOMBIC LATTICES; PHOSPHORUS; SPACE GROUPS; X-RAY DIFFRACTION

Citation Formats

Naili, H, Ettis, H, Yahyaoui, S, and Mhiri, T. Growth, structural, IR and magnetic studies of a new gadolinium metaphosphate, Gd(PO{sub 3}){sub 3}. United States: N. p., 2006. Web. doi:10.1016/j.materresbull.2006.06.014.
Naili, H, Ettis, H, Yahyaoui, S, & Mhiri, T. Growth, structural, IR and magnetic studies of a new gadolinium metaphosphate, Gd(PO{sub 3}){sub 3}. United States. https://doi.org/10.1016/j.materresbull.2006.06.014
Naili, H, Ettis, H, Yahyaoui, S, and Mhiri, T. 2006. "Growth, structural, IR and magnetic studies of a new gadolinium metaphosphate, Gd(PO{sub 3}){sub 3}". United States. https://doi.org/10.1016/j.materresbull.2006.06.014.
@article{osti_20891940,
title = {Growth, structural, IR and magnetic studies of a new gadolinium metaphosphate, Gd(PO{sub 3}){sub 3}},
author = {Naili, H and Ettis, H and Yahyaoui, S and Mhiri, T},
abstractNote = {The crystal structure of gadolinium metaphosphate Gd(PO{sub 3}){sub 3} has been established by X-ray diffraction. This compound crystallizes in the orthorhombic system (space group C222{sub 1}, Z=4) with cell parameters: a=8.4530 (3), b=11.0576 (4) and c=7.1952 (2)A. The structure was refined to R{sub 1}=0.0234 and wR{sub 2}=0.0502 using 2180 independent reflections (I>2{sigma}(I)). Phosphorus atoms are in slightly irregular tetrahedral oxygen coordination, gadolinium atoms are in considerably distorted dodecahedral oxygen coordination. Formally, the 3D framework in the structure can be described by the PO{sub 4} tetrahedra sharing corners to form helical chains and the GdO{sub 8} polyhedra sharing edges in a zigzag fashion. The shortest Gd-Gd distance is 4.174 (2)A. The infrared spectrum of the title compound recorded at room temperature in the frequency range of 400-4000cm{sup -1}, confirm the atomic arrangement within the structure. Below T{sub C}=25K, the magnetic susceptibility evolution is characteristic of a ferromagnetic order. In the high-temperature region above 100K, the susceptibility follows a Curie-Weiss law with C=7.91cm{sup 3}Kmol{sup -1} and {theta}=9.96K.},
doi = {10.1016/j.materresbull.2006.06.014},
url = {https://www.osti.gov/biblio/20891940}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 11,
volume = 41,
place = {United States},
year = {Thu Nov 09 00:00:00 EST 2006},
month = {Thu Nov 09 00:00:00 EST 2006}
}