A new inorganic-organic hybrid lanthannm thioantimonate（V） with bidentate and tetradentate mixed amino ligands, namely La（teta）（en）（μ-η1,η2-SbS4） （1, teta = triethylenetetramine, en = ethylenediamine）, has been solvothermally synthesized and structurally, thermally and optically characterized. In 1, the en ligand is in situ produced by re-aggregation of teta which plays multiple roles in the reaction as ligand, reactive solvent and precursor. Single-crystal X-ray analysis reveals that 1 belongs to the orthorhombic space group P212121. Its structure features a one-dimensional organic-inorganic hybrid chain of [La（teta）（en）（μ-η1,η2-SbS4）],, constructed by alternating arrangement of μ-η1,η2-sbvs4 tetrahedron and La（teta）（en） complex. Keywords： thioantimonate, lanthanum, amino ligand, crystal structure, optical property
Two new gallium antimony sulfides,[enH2][Ga2Sb2S7]·en（1） and [puH]2[Ga2Sb2S7]（2）（en = ethylenediamine,pu = propyleneurea）,have been solvothermally synthesized.In the pre-paration of compound 2,the protonated propyleneurea cation as counterion and template was in situ synthesized by the reaction of 1,3-diaminopropane with CO2 in pyridine.Both structures contain a two-dimensional network composed of novel heterometallic clusters of {Ga2Sb2S9} as the second-dary building unit.The thermal and optical properties of compounds 1 and 2 were characterized by TGA and UV-Vis,respectively.
Two lanthanide selenite-carboxylate （LSC） compounds, namely, [Ln8（SeO3）4（2,6- pdc）8（H2O）10]·2H2O （Ln = Pr 1, Sm 2; 2,6-pdcH2 = pyridine-2,6-dicarboxylic acid） have been hydrothermally synthesized and structurally characterized. Both compounds possess two-dimensional layer structures constructed by Ln8（SeO3）4（2,6-pdc）8（H2O）10 clusters connected to each other via bridging carboxylate groups. The structures are further extended into three-dimensional architectures through extensive inter-layer H-bonding between coordinated water molecules and carboxylate groups. The luminescent properties and thermal stability of both compounds have been investigated.
