A NEW Cu(I) IODIDE COMPLEX SHOWINGDEEP-RED LUMINESCENCE

A reaction of a [1,4-C6H4(CH2PPy3)2]Cl2 cationic ligand with CuI (MeCN, r.t.) produces an ionic [C6H4(CH2PPy3)2][C6H4(CH2PPy3Cu3I5)2] complex containing structurally unprecedented [Cu3I5]2– inorganic module in the anionic part. The title complex in the solid manifests a weak deep-red luminescence with λmax = 680 nm and lifetimes of 14 μs and 17 μs at 300 K and 77 K, respectively.