Chem. J. Chinese Universities

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Synthesis, Characterization and the Third-order Nonlinear Optical Properties of a Derivative of {Mo102}-type Porous Inorganic Nano-fullerene

ZHOU Yun-Shan1,2*, HAN Rui-Xue1, ZHANG Li-Juan1, LI Yu-Hao1, ZHANG Li-Hui1   

    1. State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029;
    2. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Peking University, Beijing 100871, China
  • Received:2008-03-07 Revised:1900-01-01 Online:2008-07-10 Published:2008-07-10
  • Contact: ZHOU Yun-Shan

Abstract: A small spherical inorganic fullerene nano-capsule anion of a formula [{(Mo)Mo5O21(H2O)4·SO4}12{MoO(H2O)}30]12- bearing 20 {Mo6O6}-type rings/channels built up from 102 Mo atoms and O atoms were synthesized by reacting a highly charged spherical inorganic fullerene nano-capsule anion with the formula [{(Mo)Mo5O21(H2O)6}12{Mo2O4(SO4)}30]72- bearing 20 {Mo9O9}-type rings/channels with guanidineacetic acid under acidic conditions at room temperature. The crystal structure of the resulted compound were characterized by X-ray single-crystal diffraction, elemental analysis, TG-DTA analysis and FTIR, UV-Vis, and ESR spectrascopies. It crystallizes in a triclinic system space group P1, a=2.5377(5) nm, b=2.5932(5) nm, c=3.9547(8) nm, α=83.58(3) °, β=86.15(3) °, γ=75.55(3) °, V=25.023(9) nm3. Meanwhile, its third-order nonlinear optical properties were studied using Z-scan technique with 5 ns laser pulse at λ=532 nm. The third-order nonlinear refractive index of the title compound is determined to be γ=-3.29×10-18 m2/W and the third-order nonlinear susceptibility χ(3)=-1.04×10-23 m2·V-2, showing strong nonlinear self-defocusing refractive effects.

Key words: Inorganic fullerene, Nanostructure, Nonlinear optical property

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