Abstract
Both the homometal cluster [P(ph 4)] 2[Mo 2O 2( μ-S) 2(S 2) 2] ( 1) and [Mo 2O 2( μ-S) 2(Et 2dtc) 2] ( 2) (Et 2dtc=diethyl-dithiocarbamate) were successfully synthesized by low-temperature solid-state reactions. X-ray single-crystal diffraction studies suggest that compound ( 1) is a dinuclear anion cluster, and compound ( 2) is a dinuclear neutral cluster. The two compounds were characterized by elemental analyses, IR spectra and UV-Vis spectra. The third-order non-linear optical (NLO) properties of the clusters were also investigated and all exhibited nice non-linear absorption and self-defocusing performance with moduli of the hyperpolarizabilities 5.145×10 −30 esu for ( 1) and 5.428×10 −30 esu for ( 2).
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