title: Synthesis, radii dependent self-assembly crystal structures and luminescent properties of rare earth (III) complexes with a tripodal salicylic derivative.
abstract: Five new rare earth complexes with a new flexible tripodal salicylic ligand (H(3)L), 2,2'-(2-((2-carboxyphenoxy)methyl)-2-(4-methylphenylsulfonamido)propane-1,3-diyl)bis(oxy)dibenzoic acid, of formulae [La(2)L(2)(DMF)(4)]·4DMF·4EtOH·2H(2)O (1), [Eu(2)L(2)(DMF)(4)]·2DMF (2), {[GdL(DMF)(H(2)O)(2)]·DMF}(∞) (3), {[TbL(DMF)(H(2)O)(2)]·DMF}(∞) (4) and {[YL(DMF)(H(2)O)(2)]·DMF}(∞) (5) (DMF = N,N-dimethylformamide) have been prepared. The single-crystal X-ray diffraction analysis revealed that complexes 1 and 2 present a cage-like homodinuclear species, while 3-5 show a helical one-dimensional coordination polymer. All these complexes are further connected by hydrogen bonds or π-π interactions, resulting in 3D supramolecular structures. The photophysical properties of the Eu and Tb complexes are investigated in the solid state at room temperature.
authors: State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
authors: Ya-Wen
authors: YW
authors: Wang
authors: Yan-Ling
authors: YL
authors: Zhang
authors: Wei
authors: W
authors: Dou
authors: Ai-Jiang
authors: AJ
authors: Zhang
authors: Wen-Wu
authors: WW
authors: Qin
authors: Wei-Sheng
authors: WS
authors: Liu
mesh_terms: D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008024:Ligands; D049408:Luminescent Agents / Q000138:chemical synthesis* / Q000737:chemistry; D008674:Metals, Rare Earth / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D012459:Salicylates / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D008024:Ligands; D049408:Luminescent Agents; D008674:Metals, Rare Earth; D009942:Organometallic Compounds; D012459:Salicylates