RESUMO
In the hydro/solvothermally synthesized title compound, Na(4)[Cu(2)(H(2)Ge(2)O(7))(H(2)GeO(4))(2)]·H(2)O, the framework building units include CuO(4), GeO(2)(OH)(2) and GeO(3)(OH) tetra-hedra, the latter being condensed into H(2)Ge(2)O(7) (4-) dimers. All the tetra-hedra are connected by corner-sharing into four-membered-ring (4MR) secondary building units containing two CuO(4), one GeO(2)(OH)(2) and one GeO(3)(OH) entity. The 4MRs form chains by corner-sharing the Cu unit and adjacent chains are linked by H(2)Ge(2)O(7) (4-) dimers, generating layers containing ten-membered rings. Three sodium cations (one with site symmetry and one with site symmetry 2) and a water mol-ecule (O-atom site symmetry 2) complete the structure. A network of O-Hâ¯O hydrogen bonds helps to consolidate the packing.
RESUMO
In the title compound, {(C(4)H(16)N(3))[La(SO(4))(3)(H(2)O)]}(n), the La atom adopts an irregular LaO(9) coordination geometry, including one bonded water mol-ecule. The three sulfate groups adopt both monodentate and bidentate coordination to the metal ions. Two of the sulfate groups serve as bridges in the (100) and (010) directions, yielding infinite sheets, whereas the third is pendant to one La(3+) cation. The protonated organic species inter-acts with the layers by way of N-Hâ¯O hydrogen bonds, and O-Hâ¯O hydrogen bonds involving aqua ligands also occur.