%0 Journal Article %T Growth, single-crystal structure, and magnetic properties of the double molybdate KYb(MoO4)2 %+ Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier (ICGM) %A Armand, Pascale %A Reibel, C. %A Granier, D. %A Tillard, Monique %< avec comité de lecture %@ 0022-3697 %J Journal of Physics and Chemistry of Solids %I Elsevier %V 154 %P 110023 %8 2021-07 %D 2021 %R 10.1016/j.jpcs.2021.110023 %K oxides %K crystal growth %K X-ray diffraction %K crystal structure %K magnetic properties %Z Chemical Sciences/Inorganic chemistry %Z Chemical Sciences/Cristallography %Z Chemical Sciences/Material chemistryJournal articles %X Crystals of the rare earth double molybdate KYb(MoO4)2 were grown by spontaneous nucleation from a K2Mo4O13 flux. The typical crystals were colorless and elongated, well-developed plates. The material has been characterized by powder X-ray diffraction (PXRD), energy-dispersive X-ray spectrometry (EDS), and Raman spectroscopy methods. The structural properties have been investigated through single-crystal X-ray diffraction at room temperature. KYb(MoO4)2 crystallizes in the orthorhombic symmetry, space group Pbcn (No. 60), a = 5.0395(2), b = 18.2821(9), c = 7.8635(4) Å, and Z = 4. A complete ordering of the Yb3+ and Mo6+ cations has been found. The Yb3+ ions are located in distorted YbO8 antiprisms which form chains of edge-sharing, aligned along the c-axis while the Mo6+ ions are placed in a slightly deformed tetrahedral environment of oxygen atoms. Double bridge modes of the “Mo2O8 dimers” have been identified in the unpolarized Raman spectra. The temperature-dependent magnetic susceptibility of KYb(MoO4)2 follows a Curie–Weiss law with a Weiss constant of −52 K. %G English %2 https://cnrs.hal.science/hal-03182581/document %2 https://cnrs.hal.science/hal-03182581/file/article-KYbMo2O8-last-submission.pdf %L hal-03182581 %U https://cnrs.hal.science/hal-03182581 %~ CNRS %~ ENSC-MONTPELLIER %~ ICG %~ INC-CNRS %~ CHIMIE %~ UNIV-MONTPELLIER %~ TEST-HALCNRS %~ UM-2015-2021 %~ TEST2-HALCNRS