Hydrothermal synthesis of a chiral rare earth iodate (Gd(IO3)3 · H2O) showing the rare (3, 8)-connected (43)(4 · 62) (49 · 617 · 82) topology

In the presence of Cu(II) ions, a chiral rare earth iodate Gd(IO₃)₃?·?H₂O (crystallizing in P2₁ (no. 4) space group), was synthesized hydrothermally from Gd₂O₃ and HIO₃; the structure is the topologically (3,?8)-connected (4³)(4?·?6²)(4⁹?·?6¹⁷?·?8²) network, constructed from 3-connected trigonal nodes (I1, I3) and 8-connected tetragonal prism nodes (Gd1).