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Articles by Pei-Pei Yang
Total Records ( 3 ) for Pei-Pei Yang
  Pei-Pei Yang , Li Feng , Wen Gu , Xin Liu and Shi-Ping Yan
  A 1D complex [lcub[Cu2([12]aneN3)2(p-paa)(H2O)2](ClO4)2rcub[Cu2([12]aneN3)2(p-paa)2]]n ([12]aneN3 = 1,5,9-triazacyclododecane, p-paa = p-benzenebicarboxylate) has been synthesized and structurally characterized. The complex contains two different binuclear copper(II) moieties. One part includes a binuclear copper(II) unit and non-coordinated perchlorate anions. A neutral binuclear copper(II) part which forms a zigzag chain structure via the bridging p-paa ligand completes the unit-cell. Elemental analysis, IR, UV-Vis spectra and magnetic properties for the complex have also been determined. Magnetic susceptibilities in the solid state are measured over the temperature range from 77 to 300 K, showing a weak antiferromagnetic coupling with a best fit J1 = -3.09 cm-1, J2 = -5.279 cm-1, g = 2.099 and R = 1.226 times 10-5.
  Jiang-Yun Wang , Pei-Pei Yang , Wen Gu , Wen-Zhen Wang , Xin Liu and Dai-Zheng Liao
  A mononuclear ruthenium(III) complex containing ethylenediaminetetraacetate (edta), [Ru(Hedta)(Htrz)] · 4H2O (1) (Htrz = 1H-1,2,4-triazole), has been synthesized and the structure was determined by single-crystal X-ray diffraction. The complex crystallizes in the triclinic space group P1, with the unit cell parameters a = 7.212(3) , b = 9.873(4) , c = 13.806(6) , α = 91.945(6)°, β = 100.078(6)°, γ = 97.230(7) and Z = 2. The complex was also characterized by elemental analysis, IR, UV-Vis and ESR spectra. Cyclic voltammetry for the complex shows a ruthenium(III)/ruthenium(IV) oxidation and a ruthenium(III)/ruthenium(II) reduction within the range of -1.5-0.5 V. Magnetic susceptibility data give an effective moment of 1.81 B.M. at room temperature.
  Zong- Wei Li , Pei-Pei Yang , Xiao-Ling Wang and Li-Cun Li
  Two new 1-D manganese(III) Schiff-base complexes bridged by dicyanamide (dca), [Mn(III)(5-Brsalen)(dca)] ⋅ CH3OH (1) and [Mn(III)(3,5-Brsalen)(dca)] · CH3OH · CH3CN (2) (5-Brsalen = N,N′-ethylenebis(5-bromo salicylaldiminato) dianion; 3,5-Brsalen = N,N′-ethylenebis(3,5-dibromosalicylal diminato) dianion), have been synthesized and characterized. X-ray diffraction analyses reveal that the two complexes have 1-D chain structures constructed by μ1,5-dca bridge. Magnetic susceptibility measurements exhibit weak antiferromagnetic exchange coupling in the complexes.
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