ChemInform Abstract: An Organic—Inorganic Hybrid 1‐D Double‐Chain Copper—Yttrium Heterometallic Silicotungstate [Cu(dap)2(H2O)]2{Cu(dap)2 [α‐H2SiW11O39Y (H2O)2]2}·10H2O. Issue 12 (14th March 2013)