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Hoffmann, Stefan; Fässler, Thomas F. . (2006). Condensation of [Si <sub/>3</sub> O <sub/>9</sub> ] <sup>6</sup><sup>-</sup> Anions in the Solid State to the Dimeric Cyclotrisilicate Anion [Si <sub/>6</sub> O <sub/>17</sub> ] <sup>10</sup><sup>-</sup>. Inorganic Chemistry, 45(19), 7968–7972. doi:10.1021/ic0610886 
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