Quasi-solvothermal syntheses and X-ray crystal structures of two germanates (H3O)4Ge7O16 · 3H 2O and K4Ge9O20 are presented. Although both structures are built up from the same rock-like secondary building units (SBUs) Ge10O28, the frameworks are different because of the different connect manners of SBUs. Crystal data for H 4Ge7O16·7H2O: Mr = 894.27, space group P-43m, a = 0.77309(18) nm, V = 0.46205(19) nm3, Z = 1, Mo Kα, λ = 0.071073 nm, R(F) = 3.48%, wR(F2) = 8.39% for 20 parameters and 228 reflections with I > 2σ(I). Crystal data for K4Ge9O20: Mr = 1129.71, space group I4(1)/a, a = 1.5002(3) nm, c = 0.7383(2) nm, V = 1.6618(7) nm 3, Z = 4, Mo Kα, R(F) = 3.92%, wR(F2) = 11.97% for 75 parameters and 922 reflections with I > 2σ(I).
|Translated title of the contribution||(H3O)4Ge7O16·3H 2O and K4Ge9O20: Two microporous germanates constructed by Ge10O28 units|
|Number of pages||6|
|Journal||Acta Chimica Sinica|
|Publication status||Published - 1 Dec 2003|
- Microporous material
- Secondary building unit
- Solvothermal synthesis