ChemInform Abstract: Hydrothermal Synthesis and Structural Characterization of an Organic‐Inorganic Hybrid Sandwich‐Type Tungstoantimonate [Cu(en)2(H2O)]4 [Cu(en)2(H2O)2] [Cu2Na4 (α‐SbW9O33)2]·6H2O. Issue 8 (25th February 2014)