Three new gallium complexes formulated as [Ga（PDA）2 ][Ga（H2O）（PDA）（phen）]·4H2O（1）,[Ga（PDA） 2]·（H2IN）·2H2O（2） and [Ga（OH）（PDA）（H2O）] 2（3）（H2PDA=pyridine-2,6-dicarboxylic acid;phe...Three new gallium complexes formulated as [Ga（PDA）2 ][Ga（H2O）（PDA）（phen）]·4H2O（1）,[Ga（PDA） 2]·（H2IN）·2H2O（2） and [Ga（OH）（PDA）（H2O）] 2（3）（H2PDA=pyridine-2,6-dicarboxylic acid;phen=1,10-phenanthroline;HIN=isonicotinic acid） have been synthesized under hydrothermal conditions.In the mixed-ligand system of complex 1,PDA2 and phen are connected to the central Ga 3＋ cation as tri-and bi-dentate ligands,respectively.In complex 2,each Ga 3＋ cation is six-coordinated by two PDA 2 anions octahedrally.Complex 3 shows a binuclear structure,with the bond distance of Ga1― Ga2 being 0.30061（3） nm.The 3D supramolecular structures of the three complexes are constructed via hydrogen bonds and aromatic π-π packing interactions.All the three complexes exhibit intense blue emission at room temperature in the solid state,which are attributed to π＊-π transition centered on the ligands.展开更多
基金Supported by the National Natural Science Foundation of China(Nos.20971031,21071035,21171044)the China Postdoctoral Science Foundation Funded Project(No.65204)the Key Natural Science Foundation of Heilongjiang Province,China(No.ZD201009)
文摘Three new gallium complexes formulated as [Ga（PDA）2 ][Ga（H2O）（PDA）（phen）]·4H2O（1）,[Ga（PDA） 2]·（H2IN）·2H2O（2） and [Ga（OH）（PDA）（H2O）] 2（3）（H2PDA=pyridine-2,6-dicarboxylic acid;phen=1,10-phenanthroline;HIN=isonicotinic acid） have been synthesized under hydrothermal conditions.In the mixed-ligand system of complex 1,PDA2 and phen are connected to the central Ga 3＋ cation as tri-and bi-dentate ligands,respectively.In complex 2,each Ga 3＋ cation is six-coordinated by two PDA 2 anions octahedrally.Complex 3 shows a binuclear structure,with the bond distance of Ga1― Ga2 being 0.30061（3） nm.The 3D supramolecular structures of the three complexes are constructed via hydrogen bonds and aromatic π-π packing interactions.All the three complexes exhibit intense blue emission at room temperature in the solid state,which are attributed to π＊-π transition centered on the ligands.
