Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/4741
Title: Hydrothermal synthesis, characterization and magnetic properties of NaVGe2O6 and LiVGe2O6
Authors: Eanes, Mehtap
Kolis, Joseph W.
Keywords: Vanadium compounds
Inorganic compounds
X-ray diffraction
Spin-Peierls distortion
Tetrahedral chains
Issue Date: Aug-2004
Publisher: Elsevier Ltd.
Source: Emirdag-Eanes, M., and Kolis, J. W. (2004). Hydrothermal synthesis, characterization and magnetic properties of NaVGe2O6 and LiVGe2O6. Materials Research Bulletin, 39(10), 1557-1567. doi:10.1016/j.materresbull.2004.04.001
Abstract: Supercritical fluids are shown to be an excellent reaction media for the synthesis of novel solid state phases at intermediate temperatures. LiVGe 2O6 and NaVGe2O6 have the common pyroxene structure composed of VO6 linear chains. NaVGe 2O6 crystallizes in the monoclinic space group C2/c with four formula units having cell dimensions a = 9.960(4)Å, b = 8.853(10)Å, c = 5.4861(10)Å, β = 106.403(3)°. The structure was refined until R = 0.0290 and Rw = 0.0370. For LiVGe 2O6 in space group P21/c: a = 9.8508(7)Å, b = 8.754(3)Å, c = 5.3948(13)Å, β = 108(3)°, R = 0.0240 and Rw = 0.0250. The compounds contain edge-shared VO6 octahedral chains and corner-shared GeO4 tetrahedral chains. The presence of these VO6 chains results in spin-Peierls distortion. Structural and physical characterization of the compounds are reported.
URI: http://doi.org/10.1016/j.materresbull.2004.04.001
http://hdl.handle.net/11147/4741
ISSN: 0025-5408
0025-5408
Appears in Collections:Chemistry / Kimya
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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