| Fourteen novel coordination compounds based on （4-carboxyphenyl）（4-（2-carboxyphenyl）benzyl） ether （H2L） and N-donor ligands have been hydrothermallysynthesized and structurally determined by single-crystal X-ray diffraction analyses, namely,[Zn3（L）3（biim-4）2]·H2O （1）,[Cd（L）（H2O）（biim-4）0.5]（2）,[Zn（L）（BIE）]（3）,[Co（L）（BIE）]（4）,[Cd（L）（BIE）]（5）,[Ni（L）（BIE）]（6）,[Ni（L）（phen）]·H2O （7）,[Co（L）（phen）]·H2O （8）,[Co（HL）2（phen）2]·3H2O （9）,[Cd（L）（H2O）（phen）]（10）,[Co（L）（H2O）（phen）]（11）,[Cd（L）（phen）2]（12）,[Pb（L）]（13）, and [Pb（L）（phen）]·H2O （14）, where biim-4=1,1’-（1,4-butanediyl）bis（imidazole）, BIE=2,2’-bis（1-imidazolyl）ether, and phen=1,10-phenanthroline. Compound1displays an unusual3D binodal （4,5）-connected net withPoint Symbol of （43·62·8）（45·5·64）. Compound2exhibits1D loop-like chain structures, whichare further extended into a3D supramolecular architecture through π-π interactions.Compounds3-6are isomorphous, and feature similar2D layer structures. Compounds7and8are isomorphous, and show the same0D structures, which are further extended by π-πinteractions into2D supramolecular layers. Compound9displays a discrete [Co2（L）2（phen）2]dimer. Neighboring dimers are further linked by π-π interactions to form a1D double chain.Compounds10and11exhibit the similar1D double chain structures. The chains are furtherlinked via π-π interactions to generate2D supramolecular layers. Compound12shows adiscrete [Cd2（L）2（phen）2] dimer. The π-π stacking and hydrogen-bonding interactions furtherextend the dimers into a3D supramolecular architecture. Compound13displays a typical（4,4） network structure. Neighboring networks are further linked by the π-π interactions,leading to an unusual3D supramolecular architecture. Compound14exhibits a discrete[Pb2（L）2（phen）2] dimer. Neighboring dimers are further linked by the π-π interactions to forma2D supramolecular layer. The thermal stabilities and luminescent properties of thecomplexes have also been investigated in detail. |
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