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Abstract: A new 2-D inorganic–organic hybrid constructed from mixed-valence Cu(I/II) ions and mixed ligands, (H3sip=5-sulfoisophthalic acid, bipy=4,4′-bipyridine), has been synthesized and characterized by IR, TGA, XPS, EPR and single-crystal X-ray diffraction. Two different kinds of chains in the compound constructed from [CuO4] planar squares and [CuN2O] triangulars, respectively, further interconnect together to give rise to an interesting 2-D layer framework. The compound exhibits strong yellow emission at 445nm excited by 378nm in the solid state at room temperature. [Copyright &y& Elsevier]

Abstract: Three isostructural lanthanide complexes, [Ln2(H2O)4(DMSO)](CuI)4(Ina)4(ox)[HIna=isonicotinic acid; H2ox=oxalic acid; Ln=Pr(1), Sm(2), Eu(3)], have been synthesized under the solvothermal condition and characterized by single-crystal X-ray diffraction, X-ray powder diffraction (PXRD), thermogravimetric analysis (TGA) and elemental analysis (EA) and IR spectra. Complexes 1–3 present 2-D pillar-chained frameworks and consist of two distinct chain-like motifs of inorganic [Cu4I4]n cluster chains and organic Ln-carboxyl-oxalic [Ln2(μ 2-Ina)2(Ina)2(μ 2-ox)]n chains. The 13C NMR of HIna indicates ox2− in 1–3 is generated by the in situ decomposition of HIna. Additionally, the photoluminescent properties of 1–3 are also discussed. [Copyright &y& Elsevier]