Microwave Irradiation Synthesis of Mo(W)/Tl/S Linear Chains and Their Nonlinear Optical Properties in Solution

Abstract

New one-dimensional complexes [(n-Bu)4N][TlMS4] (1, M = Mo; 2, M = W) were synthesized by microwave irradiation of well-ground mixtures of [NH4]2[MS4], TlBr, and [(n-Bu)4N]Br (molar ratio 1:1:3). The [TlMS4]- unit constitutes infinite chains by stacking along the crystallographic c axis, and the countercations are located between the chains. 1 and 2 in acetonitrile exhibit both nonlinear optical absorption and nonlinear optical refraction.