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Syntheses, Structures, and Nonlinear Optical Properties of Two Crown-like Heteroselenometallic Compounds [Et4N]4[(μ5-WSe4)(CuX)5(μ-X)2] (X = Cl, Br) |
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| Authors: | Shaobin Miao Zhan Yu Qian-Feng Zhang Yinglin Song Alexander Rothenberger Wa-Hung Leung |
| Institution: | 1. Department of Applied Chemistry, Anhui University of Technology, Ma’anshan, Anhui, 243002, P. R. China 2. Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, P. R. China 3. Department of Physics, Harbin Institute of Technology, Harbin, 150001, P. R. China 4. Institut für Anorganische Chemie, Universit?t Karlsruhe (TH), 76128, Karlsruhe, Germany |
| Abstract: | Two isostructural crown-like heteroselenometallic cluster compounds, Et4N]4(μ5-WSe4)(CuX)5(μ-X)2] (X = Cl 1, Br 2), were prepared from the reactions of Et4N]2WSe4] with CuX and Et4N]X· xH2O in the presence of 2-picoline and characterized by single-crystal diffraction analysis. The (μ5-WSe4)(Cu-X)5(μ-X)2]4− anions in the cluster compounds consists of five CuX fragments coordinated to the five edges of the tetrahedral WSe4]2− moiety along with two bridging halides connected to each of the two pairs of the symmetric copper atoms, exhibiting a novel crown-like core structure. The nonlinear optical absorption and refraction of cluster compound 2 were determined to be α2 = 6.15 × 10−10 m/W and n 2 = 4.18 × 10−11 esu, respectively. |
| Keywords: | selenide cluster tetraselenomate copper synthesis structure optical nonlinearity |
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