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Synthesis, crystal structure and third order nonlinear optical properties of bis(tetra-n-propylammonium) bis(2-thioxo-1,3-dithiole-4,5-dithiolato)cuprate(II)

✍ Scribed by W. F. Guo; X. B. Sun; J. Sun; W. T. Yu; X. Q. Wang; G. H. Zhang; D. Xu

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
239 KB
Volume
42
Category
Article
ISSN
0232-1300

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✦ Synopsis

A novel bis (dmit) complex of copper (II), [(C 3 H 7 ) 4 N] 2 [Cu(dmit) 2 ] (1), where dmit is 2-thioxo-1,3-dithiole-4,5-dithiolate, was prepared and structurally characterized by X-ray single crystal diffraction. The copper (II) atom is tetracoordinated by four dmit S atoms, forming a nearly square planar arrangement. The [Cu(dmit) 2 ] 2- anions and the [(C 3 H 7 ) 4 N] + counter-cations form a three-dimensional solid-state structure by C-H…S hydrogen bonds. The third-order nonlinear optical properties of the complex were determined by picosecond Z-scan technique at a wavelength of 1064 nm. The results indicate the compound exhibits reverse saturation absorption and self-defocusing performance. The molecular second-order hyperpolarizability Ξ³ is calculated to be as high as (1.8Β±0.2)Γ—10 -30 esu.

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