Abstract
A new synthetic method was employed to prepare the silver(I) iodide polymer {[NEt4]3[Ag6I9]} n with a one-dimensional double-chain. A mixture of solid Et4NI, AgI and [NH4]2[MoO2S2] was heated gently and the reaction residue was extracted with MeCN. Orange-red monoclinic crystals were obtained at room temperature. The infinite chains of consist of edge-shared square pyramids, in which iodides bridge silver atoms such that the geometry around the silver atoms is tetrahedral. A detailed study of its third-order nonlinear optical property via Z-scan is reported. The polymer {[NEt4]3[Ag6I9]} n shows a very strong self-focusing refractive effect with efficient third-order NLO susceptibility χ(3) of 6.0 × 10−11 esu.
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