Three-dimensional architectures based on 1:1 type lanthanide-substituted Keggin-type polyoxometalates and lanthanide cations

Two new inorganic frameworks HLa(H2O)5[La(H2O)6]2[La(H2O)2(GeW11O39)]2·7H2O (1) and HK(H2O)La3(H2O)15[La(H2O)3(GeW11O39)]2·38H2O (2) based on 1:1 type lanthanide-substituted polyanion [La(H2O)n(GeW11O39)]5 − have been synthesized under hydrothermal reactions. Interestingly, compounds 1 and 2 can be selectively obtained by simply controlling the reaction temperatures under similar conditions.168