Synthesis and characterization of the 'Japanese rice-ball'-shaped molybdenum blue Na4[Mo2O2(OH)4(C6H4NO2)2]2[Mo120Ce6O366H12(OH)2(H2O)76]~200H2O

Author(s): Emir Al-Sayed, Elias Tanuhadi, Gerald Giester, Annette Rompel
Abstract: The hybridized lanthanide-containing molybdenum blue (Ln-MB) wheel Na4[Mo2O2(OH)4(C6H4NO2)2]2[Mo120Ce6O366H12(OH)2(H2O)76]∼200H2O ({Mo2(C6H4NO2)2}2{Mo120Ce6}) was assembled in an aqueous one-pot synthesis. The Ln-MB was hybridized with 2-picolinic acid through the generation of the organometallic counter-ion [Mo2O2(OH)4(C6H4NO2)2]2+. Control experiments demonstrated that the position of the carboxylic acid group (2-position to the N atom) in the hybridization component is critical in yielding single crystals of Ln-MB. In addition to single-crystal X-ray diffraction (XRD) analysis, which revealed a `Japanese rice-ball'-shaped Ln-MB as the anion, elemental analyses, IR spectroscopy, and thermogravimetric analysis (TGA) were performed to confirm its structure and composition. Bond-valence-sum calculations (BVS) revealed that {Mo2(C6H4NO2)2}2{Mo120Ce6} is composed of a 24-electron reduced anionic ring, which was confirmed by Vis–NIR spectroscopy.
Organisation(s): Department of Biophysical Chemistry, Department of Mineralogy and Crystallography
Journal: Acta Crystallographica. Section C: Structural Chemistry
Volume: 78
Pages: 299-304
No. of pages: 6
ISSN: 2053-2296
DOI: https://doi.org/10.1107/S2053229622003369
Publication date: 05-2022
Peer reviewed: Yes
Austrian Fields of Science 2012: 105116 Mineralogy, 104017 Physical chemistry, 105113 Crystallography
Keywords
ASJC Scopus subject areas: Condensed Matter Physics, Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
Portal url: https://ucrisportal.univie.ac.at/en/publications/f28c89e8-b929-456c-978c-37a7579f773a

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