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- Title
[(SeO)<sub>4</sub>P<sub>8</sub>W<sub>48</sub>O<sub>184</sub>]<sup>32–</sup>: a Tetraselenite‐Embedded Derivative of the Cyclic 48‐Tungsto‐8‐Phosphate.
- Authors
Wang, Kai‐Yao; Zhang, Shu; Ding, Dong; Ma, Tian; Kortz, Ulrich; Wang, Cheng
- Abstract
The tetraselenite‐incorporated 48‐tungsto‐8‐phosphate [(SeO)4P8W48O184]32– (Se4P8W48) has been synthesized by treating SeO2 with the superlacunary, macrocyclic polyanion precursor [P8W48O184]40– (P8W48) in aqueous solution. Single crystal X‐ray diffraction analysis was carried out on K26Li6[(SeO)4P8W48O184]·98H2O [KLi‐Se4P8W48, monoclinic space group C2/m, a = 35.3618(9) Å; b = 21.7869(6) Å; c = 24.6187(7) Å; β = 132.5822(15) °; V = 13965.4(7) Å3; Z = 2]. The polyanion Se4P8W48 contains four SeO32– groups, adopting a trigonal‐pyramidal coordination geometry, grafted on the rim of the central cavity of P8W48. These four Se atoms are arranged in a coplanar fashion that is perpendicular to the main plane of P8W48, resulting in an overall D2h point group symmetry for Se4P8W48. The KLi‐Se4P8W48 bulk material was characterized by X‐ray diffraction, infrared, UV/Uis, and NMR spectroscopy, as well as thermogravimetric and elemental analysis. Functionalization of the cyclic 48‐tungsto‐8‐phosphate P8W48 archetype with selenite groups results in the tetraselenite‐embedded derivative [(SeO)4P8W48O184]32– (Se4P8W48), which was characterized by solution and solid‐state analytical techniques.
- Subjects
SELENITES; PHOSPHATES; CYCLIC compounds; CHEMICAL precursors; AQUEOUS solutions; COORDINATION compounds
- Publication
European Journal of Inorganic Chemistry, 2019, Vol 2019, Issue 3/4, p512
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201800536