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Articles by You Song
Total Records ( 2 ) for You Song
  Dan Hu , Lei Chen , Zhi-Quan Pan , Huan Liu , Xiang-Gao Meng and You Song
  A new trinuclear complex, lcub[Cu(L)]33-CO3)rcub(ClO4)4 (L = N-(2-thiophenoethyl)-N,N-bis (3-aminopropyl)amine), was synthesized and characterized by single-crystal X-ray analysis. The complex contained three identical mononuclear copper(II) units connected by the μ3-carbonate formed from atmospheric carbon dioxide. The electronic and magnetic properties were studied by cyclic voltammetry and the measurement of magnetic susceptibility, respectively. The μ3-bridging model revealed weak ferromagnetic coupling of Cu(II), with the J value of -11.28 cm-1 and the Zeeman splitting g value of 2.06, which were determined by means of magnetic measurements in the 2-300 K range.
  Hong Zhou , Xiaofei Yan , Zhenghe Peng , Zhiquan Pan , You Song and Qimao Huang
  A tetranuclear copper(II) complex, [Cu2L]2(ClO4)2 · 4H2O (1), where H3L = N,N′-bis(4-(3′-formyl-5′-chlorosalicyclidene)iminoethyl)-4-chloro-2,6-bimethyliminophenol, has been synthesized and structurally characterized by ES-MS, IR and X-ray crystallography. The complex is a dimer of two dinuclear copper(II) acylic enantiomorph subunits ([Cu2L]ClO4 · 2H2O), held together by π-π, coordination and hydrogen bond interactions. The Cu-Cu separation in each subunit, bridged by one phenoxide, is 3.228 Å, and the shortest distance of Cu-Cu between the two subunits is 3.252 Å. There are two crystallographically unique copper(II) environments, one (Cu1) is square-based pyramidal with O3N2 donor set, another (Cu2) square planar with O2N2 donor set. The cyclic voltammogram of the complex shows that it undergoes two stepwise reduction processes, Epc = -0.707 and -0.850 V, respectively. Magnetic measurements in the 2-300 K range indicate strong antiferromagnetic interactions between Cu(II) ions in each subunit with the exchange constant J = -211(2) cm-1. The observation has been rationalized on the basis of the effective magnetic pathway.
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