194550-08-8Relevant academic research and scientific papers
Sulfur-bridged iron and manganese carbonyl clusters: Synthesis, structure and nonlinear optical properties of [(μ-SPh)2Fe 2(CO)6]2(μ4-S) and [PPN][(μ3-S)2Mn3(CO)9]
Yao, Wen-Rui,Guo, Dian-Shun,Liu, Ze-Hua,Zhang, Qian-Feng
, p. 165 - 175 (2003)
Two sulfur-bridged carbonyl clusters [(μ-SPh)2Fe 2(CO)6]2(μ4-S) 1 and [PPN][(μ3-S)2Mn3(CO)9] 2 were synthesized for study of the third-order nonlinear properties. Cluster 1 consists of two doubly bridged Fe2(CO)6 fragments bonded for a center μ4-sulfur atom of the distorted tetrahedron. Each fragments is also bridged with the sulfur from a thiophenol group. Cluster 2 exhibits a D3h equilateral triangular frame with three Mn(CO)3 units apically bicapped by the two μ3-sulfur atoms. The moderate third-order optical nonlinear absorption and refraction effects of clusters 1 and 2 in CH 2Cl2 solution were observed at 532 nm by using of the z-scan measurements of an 8-ns pulsed laser. The third-order nonlinear optical susceptibilities, X(3), were detected with 5.4 × 10 -13 and 1.2 × 10-13 esu for 1 and 2, respectively, in solution. The structure-property relationship in clusters is also discussed in the paper.
