Synthesis, crystal structure and characterization of two new Cr(III)-substituted polyoxotungstates: [Cr((OCH<sub>2</sub>)<sub>3</sub>CCH<sub>2</sub>OH)<sub>2</sub>W<sub>6</sub>O<sub>18</sub>]<sup>3-</sup> and [H<sub>3</sub>Cr<sub>2</sub>W<sub>10</sub>O<sub>38</sub>(H<sub>2</sub>O)<sub>2</sub>]<sup>7-</sup>

Author(s)
Nadiia Gumerova, Alexander Roller, Gerald Giester, Annette Rompel
Abstract

A double-side triol functionalized Cr-centered Anderson type polyoxotungstate, K3[Cr((OCH2)3CCH2OH)2W6O18]·3.5H2O (CrW6-(tris-CH2OH)2) and the first dichromium(III)-substituted metatungstate, NaK6[H3Cr2W10O38(H2O)2]·6H2O (Cr2W10), were synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction anal., elemental anal. and IR spectroscopy. CrW6-(tris-CH2OH)2 demonstrates that double-side functionalization is possible even in the case when the parent inorg. anion exhibits only three protons in the solid state. Cr2W10 represents the first example of a di-substituted metatungstate anion [H2W12O40]6-. The evidence for the existence of the intact CrW6-(tris-CH2OH)2 and Cr2W10 in soln. and their exact stoichiometric compn. was obtained from electrospray-ionization mass spectrometry.

Organisation(s)
Department of Biophysical Chemistry, X-ray Structure Analysis Centre, Department of Inorganic Chemistry, Department of Mineralogy and Crystallography
Journal
Polyhedron
Volume
169
Pages
202-208
No. of pages
7
ISSN
0277-5387
DOI
https://doi.org/10.1016/j.poly.2019.04.057
Publication date
05-2019
Peer reviewed
Yes
Austrian Fields of Science 2012
104003 Inorganic chemistry, 104004 Chemical biology, 105113 Crystallography
Keywords
ASJC Scopus subject areas
Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
Portal url
https://ucris.univie.ac.at/portal/en/publications/synthesis-crystal-structure-and-characterization-of-two-new-criiisubstituted-polyoxotungstates-croch23cch2oh2w6o183-and-h3cr2w10o38h2o27(38df9b01-c6ea-4bbb-a7d5-6be1177b0927).html