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Synthesis, crystal structure and third-order nonlinear optical properties of a hexanuclear cluster [WOS3Cu2(4-tBuPy)2]2 (4-tBuPy = 4-tert-butylpyridine)

  • Bing Wu
  • , Wen Hua Zhang
  • , Hong Xi Li
  • , Zhi Gang Ren
  • , Jian Ping Lang*
  • , Yong Zhang
  • , Ying Lin Song
  • *Corresponding author for this work
  • Soochow University

Research output: Contribution to journalArticlepeer-review

Abstract

Reaction of (NH4)2[WOS3] with 2 equiv. of CuI in 4-tert-butylpyridine (4-tBuPy) and methanol afforded a hexanuclear neutral cluster [WOS3Cu2(4-tBuPy)2]2. This compound was characterized by elementary analysis, IR, UV-vis, 1H NMR, thermogravimetric analysis, and its crystal structure was determined by X-ray single crystal diffraction. The compound contains a hexagonal prismatic cage structure in which two butterfly-shaped [WOS3Cu2(4-tBuPy)2] cluster fragments are interlinked through four Cu{single bond}S bonds. The nonlinear optical properties were studied with a 30 ps pulsed laser at 532 nm. The compound exhibited strong nonlinear absorption effect with α2 = 2.5 × 10-10 mW-1, χ(3) = 8.5 × 10-14 esu, and γ = 4.8 × 10-30 esu.

Original languageEnglish
Pages (from-to)128-134
Number of pages7
JournalJournal of Molecular Structure
Volume829
Issue number1-3
DOIs
StatePublished - 17 Mar 2007
Externally publishedYes

Keywords

  • 4-tert-Butylpyridine
  • Copper cluster
  • Crystal structure
  • Nonlinear optical properties
  • Synthesis
  • Tungsten cluster

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