Synthesis,Structure,and Third-Order Nonlinear Optical Properties of W/S Cluster [Fe(DMF)6][W2(mu2-S)2S4]

摘要

The homometal cluster [Fe(DMF)6][W2(mu2-S)2S4] (I) was successfully synthesized by low-temperature solid-state reactions.X-ray single-crystal diffraction studies suggest that compound I is a dinuclear anion cluster.The compound was characterized by elemental analyses,IR spectra,and UV-Vis spectra.The third-order nonlinear optical (NLO) properties of the cluster were also investigated and exhibited nice nonlinear saturation absorption (alpha2 < 0) that is rarer than reverse saturation absorption (alpha- > 0) and self-defocusing property (n2 < 0) and self-defocusing performance with modulus of the hyperpolarizabilities (9.547 x 10~(-31) esu) for I.