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A 3D Water Network Confined in 3D Pure Inorganic Framework Constructed by [SiW 12 O 40 ] 4– and Potassium Ions
Author(s) -
Xu KeMing,
Liu YongJian,
Liu HongSheng
Publication year - 2012
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201200023
Subject(s) - protonation , cluster (spacecraft) , potassium , chemistry , molecule , infrared spectroscopy , adsorption , ion , crystallography , spectroscopy , inorganic chemistry , physics , organic chemistry , quantum mechanics , computer science , programming language
A novel protonated cage (H 2 O) 19 cluster was observed as guest in the compound K 3 H[SiW 12 O 40 ] · 19H 2 O ( 1 ). The dodecatungstosilicates are linked into a three‐dimensional (3D) host framework by potassium cations. The cage (H 2 O) 19 cluster with O h symmetry is confined to the cavities of the host framework, and their growing and repetitive arrangement leads to the construction of a 3D water network. The removal/re‐adsorption of water molecules and the stability of the host frameworks were confirmed by IR spectroscopy, TGA/DTA and XRPD.