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Self-assembly cluster compound [WS4Cu3(PPh2Py)3Br]2·CH3OH (1) was synthesized by the reaction of (NH4)2WS4, CuBr and diphenyl-2-pyridyl-phosphine (PPh2Py) in CH3OH solution under a purified nitrogen atmosphere using standard Schlenk techniques. Its structure was determined by X-ray crystallography. It crystallizes in the triclinic crystal system P-1 space group with a=1.178 6 (1) nm, b=1.302 6 (1) nm, c=1.991 7 (2) nm, α=74.671 (7)-, β=86.188 (8)-, γ=64.141 (6)-, V=2.649 5 (5) nm3, Z=1. The W center is slightly distorted from tetrahedral coordination geometry, and the structure is built up from three [Cu(PPh2Py)]+ units bridged by WS 24- multifunctional ligand to form a tetranuclear symmetrical cube-like molecule. Measurement of the nonlinear optical (NLO) properties using the Z-scan technique with an 8 ns pulsed laser at 532 nm shows that the compound possesses NLO absorption and effective self-focusing effect at α2=6.7×10-11 m/W and n2=5.64×10-18 m2/W in a 1.5×10-4 mol/L DMF solution.
Self-assembly cluster compound [WS4Cu3 (PPh2Py) 3Br] 2 · CH 3 OH (1) was synthesized by the reaction of (NH4) 2WS4, CuBr and diphenyl-2-pyridyl- phosphine (PPh2Py) standard Schlenk techniques. Its structure was determined by X-ray crystallography. It crystallizes in the triclinic crystal system P-1 space group with a = 1.178 6 (1) nm, b = 1.302 6 (1) nm, c = 1.991 7 ( 2) nm, α = 74.671 (7) -, β = 86.188 (8) -, γ = 64.141 (6) -, V = 2.649 5 (5) nm3 and Z = 1. The W center is slightly distorted from tetrahedral coordination geometry, and the structure is built up from three [Cu (PPh2Py)] + units bridged by WS 24-multifunctional ligand to form a tetranuclear symmetrical cube-like molecule. Measurement of the nonlinear optical (NLO) properties using the Z-scan technique with an 8 ns pulsed laser at 532 nm shows that the compound possesses NLO absorption and effective self-focusing effect at α2 = 6.7 × 10-11 m / W and n2 = 5.64 × 10-18 m2 / W in a 1.5 × 10- 4 mol / L DMF solution.