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A novel Cu (Ⅱ) complex of 1-phenyl-3-methyl-4-acyl-5-pyrazolone was synthesized and crystallogra- phically characterized. The single-crystal structure of the complex reveals that the crystal belongs triclinic, space group P1 with cell parameters a=0.938 7(4) nm, b=1.124 4(5) nm, c=1.222 3(5) nm, α=99.538(7)°, β=104.049(8)°, γ=113.806(6)°, and Z=2, V=1.093 3(8) nm3. Cu(Ⅱ) ion is coordinated by two 1-phenyl-3-methyl-4-acyl-5-pyrazolone ligands, and one methanol molecule giving a coordination number of five, the coordination polyhedron around Cu(Ⅱ) ion can be described as a square pyramid. Two complex units link to each other through the hydrogen-bonding interactions to form a dimer. Meanwhile, a staircase-like layer structure was built up by offset face-to-face π…π stacking interactions and weak interactions between the dimers.
A novel Cu (II) complex of 1-phenyl-3-methyl-4-acyl-5-pyrazolone was synthesized and crystallogra- phharacteristically. The single-crystal structure of the complex reveals that the crystal belongs triclinic, space group P1 with cell parameters a = 0.938 7 (4) nm, b = 1.124 4 (5) nm, c = 1.222 3 (5) nm, α = 99.538 (7) °, β = 104.049 ) And Z = 2, V = 1.093 3 (8) nm3. Cu (II) ions are coordinated by two 1-phenyl-3-methyl-4-acyl-5- pyrazolone ligands, number of five, the coordination polyhedron around Cu (II) ion can be described as a square pyramid. two staircase-like layer structure was built up by offset face-to-face π ... π stacking interactions and weak interactions between the dimers.