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]2[WSe4] 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.
Original language | English (US) |
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Pages (from-to) | 495-507 |
Number of pages | 13 |
Journal | Journal of Cluster Science |
Volume | 17 |
Issue number | 3 |
DOIs | |
State | Published - Sep 2006 |
Externally published | Yes |
Keywords
- Copper
- Optical nonlinearity
- Selenide cluster
- Structure
- Synthesis
- Tetraselenomate
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- Biochemistry
- General Materials Science