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 language | English |
|---|---|
| Pages (from-to) | 128-134 |
| Number of pages | 7 |
| Journal | Journal of Molecular Structure |
| Volume | 829 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - 17 Mar 2007 |
| Externally published | Yes |
Keywords
- 4-tert-Butylpyridine
- Copper cluster
- Crystal structure
- Nonlinear optical properties
- Synthesis
- Tungsten cluster
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