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Articles by Bo Xiao
Total Records ( 2 ) for Bo Xiao
  Bo Xiao , Wen Li , Hongwei Hou and Yaoting Fan
  By combination of Mn(II) and Hg(II) salts with a flexible building unit 1,1’-(1, 5-pentanediyl)bis-1H-benzimidazole (pbbm), two 1-D chain metal-organic polymers [Mn(SCN)2(pbbm)2]n (1) and [{HgCl2(pbbm)] · DMF}n (2) have been prepared. The polymeric 1-D chains in 1 consist of parallel ribbons of rings, whereas 2 possesses a 1-D zig-zag chain framework based on tetrahedral mercury atoms bridged by pbbm molecules and terminally coordinated by two chlorides. The significant differences of these metal-organic frameworks indicate that the flexible pbbm ligand adjusts its conformation to meet the requirement of the coordination preference of the metal center. The photoluminescent properties of these new materials have been studied in the solid state at room temperature.
  Bo Xiao , Li-Jun Yang , Hai-Yang Xiao and Shao-Ming Fang
  Two Hg(II)-containing metal−organic frameworks (MOFs) based on 1,1’−(1,5-pentanediyl)bis-1H-benzimidazole (pbbm), {[HgBr2(pbbm)] . DMF}n (1) and [HgI2(pbbm)]2 (2), have been constructed to explore new and potent ion-exchange materials. Single-crystal X-ray diffraction shows that 1 features a 1-D zigzag chain framework, while 2 presents a dimeric structure in which two Hg(II) cations are bridged by two pbbm ligands. The significant differences of these MOFs indicate that the counteranions have impact on assembling and structures of the resultant MOFs. Remarkably, coordinated Br in 1 can be replaced completely when the solid polymer is treated with an aqueous solution containing I. Confirmation of retention of structure is provided by FT-IR spectra and the XRPD pattern. The thermal stabilities of 1 and 2 have also been investigated.
 
 
 
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