All nonhydrogen atoms were refined anisotropically. Non-water hydrogenatoms were added at calculated positions and refined using a ridingmodel. Hydrogen atoms of water molecules and hydroxyl groups werelocated by difference Fourier maps and refined using a riding model at arestrained distance of 0.86 Å. The disordered water molecules in thechannels of the framework in complex 1 could not be modeled very welland were treated by the SQUEEZE routine, resulting in the absence ofhydrogen bonding acceptor for H5wB. For complex 2, one of the latticewater molecules (O8) suffered from disorder, which led to uncertaintyin the position. Crystallographic data of all three complexes aresummarized in Table 1, and selected bond lengths and angles are listedin Table S1 in the Supporting Information.