Synthesis, Structure and Third-Order Nonlinear Optical Properties of a Iodoargentate(I) Cluster Polymer of [(Et4N)(Ag2I3)]n

Apolynuclear silver(I) cluster polymer [(Et4N)(Ag2I3)]n 1 with iodo-bridging ligands has been prepared by low-temperature solid-state reaction. Single crystal X-ray analyses reveal that compound 1 possesses a new type of one-dimensional (1-D) structure. The cluster anion of the title compound can be described as polymeric chain with [Ag2I2] plane. This cluster polymer shows nice third-order nonlinear optical (NLO) absorption and refraction with absorption coefficient alfa 2 = 9.1×10-11 mźw-1 and refractive index n2 = -3.4×10-17 m2źw-1 in a 2.6×10-4 molźdm-3 DMF solution.