An Open-framework Zincoborate Formed by Zn₆B₁₂O₂₄ Clusters
A novel zincoborate, Zn(H2O)B2O4·xH2O (x ≈ 0.12), I, with open architecture has been synthesized hydrothermally. The 3-dimensional structure is built up of Zn6B12O24 clusters formed by the capping of the polycyclic borate anion, B12O2412−, by Zn3O3 clusters. The open-framework structure of I has one-dimensional 8-membered channels wherein the water molecules reside. Formation of trimeric Zn3O3 clusters as well as the presence of boron in dual coordination, both triangular and tetrahedral, are important structural features of this new zincoborate.
A. Choudhury et al., "An Open-framework Zincoborate Formed by Zn₆B₁₂O₂₄ Clusters," Dalton Transactions, Royal Society of Chemistry, Jan 2002.
The definitive version is available at http://dx.doi.org/10.1039/B108047B
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