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Iron(II) and copper(II) paratungstates B: a single‐crystal X‐ray diffraction study
Author(s) -
Gumerova Nadiia I.,
Dobrov Anatolie,
Roller Alexander,
Rompel Annette
Publication year - 2018
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229618010021
Subject(s) - triclinic crystal system , crystallography , denticity , copper , thermogravimetric analysis , chemistry , single crystal , infrared spectroscopy , crystal structure , octahedron , powder diffraction , aqueous solution , ligand (biochemistry) , transition metal , metal , inorganic chemistry , materials science , catalysis , biochemistry , receptor , organic chemistry
Paratungstate B is a common isopolytungstate (IPOT) built of the [W 12 O 40 (OH) 2 ] 10− anion and exhibits a cluster‐like construction of 12 W‐centred distorted octahedra. Due to a high surface charge density, the paratungstate anion acts as a multidentate ligand forming high‐dimensional extended structures, which exhibit unique catalytic and magnetic properties. Two new paradodecatungstate B compounds decorated by iron(II) or copper(II), namely Na 5 Fe 2.5 [W 12 O 40 (OH) 2 ]·36H 2 O ( Na 5 Fe 2.5 paraB ) and Na 4 Cu 3 [W 12 O 40 (OH) 2 ]·28H 2 O ( Na 4 Cu 3 paraB ), have been synthesized by a convenient aqueous solution method, and structurally characterized by single‐crystal and powder X‐ray diffraction, IR spectroscopy, elemental analysis and thermogravimetric analysis. Both compounds crystallize in the triclinic P space group. In both compounds, the [W 12 O 40 (OH) 2 ] 10− polyanion acts as a multidentate ligand that links transition‐metal and sodium cations, forming a three‐dimensional framework.