Crystal structure of hexa­sodium tetra­serinolium paratungstate B deca­hydrate, [Na6{(CH2OH)2CHNH3}4][W12O40(OH)2]·10H2O

• Published in: Acta crystallographica. Section E, Crystallographic communications Crystallographic communications, 2022-01, Vol.78 (Pt 2), p.207-210
• Main Authors: Sifaki, Kleanthi, Gumerova, Nadiia I., Giester, Gerald, Rompel, Annette
• Format: Article
• Language: English
• Subjects: Research Communications
• ISSN: 2056-9890
• DOI: 10.1107/S2056989022000457

The isolation and characterization of an isopolytungstate anion [W 12 O 40 (OH) 2 ] 10– (paradodeca­tungstate B) with sodium and protonated serinol entities [Na 6 ((CH 2 OH) 2 CHNH 3 ) 4 ] 10+ as counter-cations are reported. The title polyoxometalate-based organic–inorganic hybrid compound, [Na 6 (C 3 H 10 NO 2 ) 4 ][W 12 O 40 (OH) 2 ]·10H 2 O, consists of a di- μ 3 -hydroxido-tetra- μ 3 -oxido-octa­deca- μ -oxido-octa­deca­oxidododeca­tungstate (para­do­deca­tungstate B) anion, [W 12 O 40 (OH) 2 ] 10– , and six sodium cations coordinated by the oxygen ions of the polyanions, serinol ligands protonated at the N atom, and water mol­ecules. The centrosymmetric paratungstate B anion shows characteristic features in terms of bond lengths and angles. The three-dimensional framework structure is established by bonding of the sodium cations with oxygen ions of the paratungstate B anions and a network consisting of N—H⋯O and O—H⋯O hydrogen bonds of medium strength between the protonated serinol cations, water mol­ecules and the paratungstate B anions. The title compound was also characterized by means of elemental analysis, IR spectroscopy and thermogravimetric analysis.