ChemInform Abstract: Hydrothermal Syntheses, Crystal Structures and Characterization of Two New 1-D and 2-D Inorganic-Organic Hybrid Polyoxomolybdates [H 2 dap] 2 [x-Mo 8 O 26 ]·2H 2 O and [Cu(dap) 2 ] 2 [β-Mo 8 O 26 ].