A copper(Ⅱ) complex [CuL(H2O)(Sal)]·0.5H2O was obtained by the reaction of eopper(Ⅱ) salieylate with 3-methyl-4-(4-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole (L) in ethanol-water solution at room temperature. The crystal belongs to triclinic system with space group P1, and a=0.913 6(4) nm, b=1.122 2(5) nm, c=1.263 3(7) nm, α=67.10(2)°, β=76.31(3)°,γ=68.17(2)°, V= 1.101(1) nm3, Z=2. The final refinement gave R1=0.039 8 and wR2=0.106 0for 3 453 reflections with I2σ(I). This complex is a good purple fluorescent material in solid state at room temperat-ttre. CCDC: 685713.
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