1-D and 2-D lanthanide coordination polymers constructed from 4-sulfobenzoate and 1,10-phenanthroline

Li, Xia; Li, Yanqiu; Wu, Xia

doi:10.1016/j.inoche.2008.03.031

Cited by 19 publications

(4 citation statements)

References 23 publications

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“…The peaks 482 and 580 can be assigned to characteristic emissions of 4 F 9/2 → 6 H J (J = 15/2, 13/2) transitions exhibited by the Dy(III) ion. 48 When py was employed as a coordinating solvent, the emission maxima was largely blue-shifted to 560 nm in compound 6 compared to all other compounds along with the peak at a lower wavelength 423 nm. The peak at 423 nm can be attributed to the incomplete energy transfer from the linker to metal center.…”

Section: ■ Results and Discussionmentioning

confidence: 97%

“…Compound 5 exhibits emission bands with emission maxima at 410 nm and three low intense relatively sharp peaks centered at 467, 482, and 493 and very small shoulders around 580 and 650 nm. The peaks 482 and 580 can be assigned to characteristic emissions of 4 F 9/2 → 6 H J ( J = 15/2, 13/2) transitions exhibited by the Dy(III) ion . When py was employed as a coordinating solvent, the emission maxima was largely blue-shifted to 560 nm in compound 6 compared to all other compounds along with the peak at a lower wavelength 423 nm.…”

Section: Resultsmentioning

confidence: 99%

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Solvent Influence in Obtaining Diverse Coordination Symmetries of Dy(III) Metal Centers in Coordination Polymers: Synthesis, Characterization, and Luminescent Properties

Phukan

Goswami

Lipstman

et al. 2020

Crystal Growth & Design

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Six new Dy(III)-containing coordination polymers (CPs) have been synthesized emphasizing the role of solvent molecules in directing the formation of the Dy(III) coordination sphere which in turn influences the dimensionality of the coordination polymer, thermal stability, and emission properties. An isophthalate-based flexible ligand 5-[(anthracen-9-ylmethyl)amino]-isophthalic acid (H 2 L) with different solvents such as dimethylformamide (DMF), dimethylacetamide (DMA), dimethyl sulfoxide (DMSO), diethylformamide (DEF), and N-donor linkers phen (1,10-phenanothroline) and pyridine (py) was employed to o b t a i n s i x d i ff e r e n t c o o r d i n a t i o n p o l y m e r s , 5), and [Dy(L)(NO 3 )(py) 2 •py] n (6), respectively. All the compounds were characterized by IR spectroscopy and thermogravimetric analysis, and unambiguously characterized by single crystal X-ray crystallography. The bulky anthracenyl group of the linker H 2 L in combination with the solvent molecules significantly alters the coordination symmetry of the Dy(III) coordination sphere in the polymers in the manner: D 2d in 1, C 2v and D 4d in 2, C 4v and C s in 3, C 5v in 4, D 4d in 5, and D 2d in 6. The coordination symmetry plays an interesting role in sensitization of lanthanide emission. The emission maxima of compounds 1−6 vary from the blue region to the yellow region significantly due to coordination symmetry expressed by the Dy(III) centers, which in turn depends upon the coordinated solvent molecule. The thermogravimetric profile indicates the thermal stability of the solvent free compounds up to 300 °C.

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Section: ■ Results and Discussionmentioning

confidence: 97%

Section: Resultsmentioning

confidence: 99%

Solvent Influence in Obtaining Diverse Coordination Symmetries of Dy(III) Metal Centers in Coordination Polymers: Synthesis, Characterization, and Luminescent Properties

Phukan

Goswami

Lipstman

et al. 2020

Crystal Growth & Design

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“…Materials. LnCl 3 •6H 2 O [Ln(III) = Nd (1), Sm (2), Dy (3), Yb (4)] were prepared by dissolving Ln 2 O 3 (99.99%) in 6 N HCl and afterward evaporation at 80 °C until the crystal film formed. All other chemicals were of analytical grade, which were achieved from commercial sources and used without further purification.…”

Section: Methodsmentioning

confidence: 99%

“…In recent years, the design and synthesis of lanthanide aromatic carboxylic acid compounds have continued to be an active area of research of their various structures − and potential application in many areas such as extraction and separation, catalysts, luminescent probes, nonlinear optics (NLO), magnetism, and so on. − The introduction of nitrogen-containing ligands may strengthen conjugate function, enhance rigidity and stability, and reinforce fluorescence ability of the compounds. − As we know, certain lanthanide aromatic carboxylic acid compounds possess anti inflammation, sterilization, and antitumor activities, , which is significant as biological pharmaceutical. Therefore, a need is appearing to synthesize compounds that have better biological activity than that of the ligands.…”

Section: Introductionmentioning

confidence: 99%

Crystal Structures, Thermal Properties, and Biological Activities of a Series of Lanthanide Compounds with 2,4-Dichlorobenzoic Acid and 1,10-Phenanthroline

Liu¹,

Ren

Zhang³

et al. 2013

Ind. Eng. Chem. Res.

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A new family of binuclear lanthanide compounds of general formula [Ln(2,4-DClBA)3phen]2 (Ln(III) = Nd (1), Sm (2), Dy (3), Yb (4); 2,4-DClBA = 2,4-dichlorobenzoate; phen = 1,10-phenanthroline) have been synthesized and characterized by elemental analysis, molar conductance, infrared spectroscopy, ultraviolet spectra, thermogravimetric analysis, and single-crystal X-ray diffraction. On the basis of X-ray crystallography, compounds 2–4 belong to the triclinic crystal system, PI̅ space group. In compound 2, the Sm3+ ion adopted a distorted monocapped square-antiprism coordination geometry. Compounds 3 and 4 are isomorphous whose central ions (Dy3+ and Yb3+) formed a distorted square-antiprism geometry. The heat capacities of compounds 1–4 are measured using DSC technology and fitted to a polynomial equation by the least-squares method. The smoothed molar heat capacities and thermodynamic function data of compounds 1–4 relative to the reference temperature 298.15 K are then calculated. Meanwhile, these compounds exhibit in good antifungal activity against C. albicans, good antibacterial activity against S. aureus, and better antibacterial activity against E. coli. The fluorescence spectra of the samarium and dysprosium compounds behave as characteristic transitions of Sm(III) and Dy(III) ions.

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Molecular and Polymeric Uranyl and Thorium Complexes with Sulfonate‐Containing Ligands

Thuéry

2013

Eur J Inorg Chem

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International audienceSix uranyl and one thorium(IV) cation complexes with ligands involving either only sulfonate or both sulfonate and carboxylate groups as complexing sites were obtained, mainly under hydrothermal conditions, and their crystal structures were determined. The uranyl ion complex with the 2-sulfobenzoate (2-SB2-) anion synthesized in the presence of pyridine, [pyH](4)[(UO2)(2)(2-SB)(2)O](2)center dot 4H(2)O (1), is a molecular, tetranuclear complex in which 2-SB2- is chelating through its two functional groups, while [Th(2-SB)(2)(H2O)(3)]center dot 2H(2)O (2) is a 1D polymer with monodentate sulfonate and bridging bidentate carboxylate groups. Complex [(UO2)(3)K(4-SB)O(OH)(3)(H2O)(1.5)]center dot 0.5H(2)O (3), with the 4-sulfobenzoate ligand, crystallizes as a 3D framework in which uranyl oxo/hydroxo 1D subunits are connected to one another by 4-SB2- and potassium cation bridges, the latter being involved in as much as five bonds with uranyl oxo groups (cation-cation bonds). Complex [UO2(5-SSH2)(H2O)(3)](2)center dot 2(5-SSH2)center dot 3H(2)O (4), with 5-sulfosalicylic acid (5-SSH3), is a dinuclear species in which the ligand is only coordinated through its bridging bidentate sulfonate group, an unusual occurrence. 5-Sulfosalicylic acid undergoes partial desulfonation and carboxylation under hydrothermal conditions, yielding the heterometallic, tetranuclear complex [UO2Ni(5-SHIPH)(4-HIPH2)(bipy)(2)(H2O)](2)center dot(4-HIPH3) (5), 5-sulfonato-2-hydroxyisophthalic acid (5-SHIPH4) and 4-hydroxyisophthalic acid (4-HIPH3) being generated in situ. The all-sulfonate ligand 1,2-ethanedisulfonate (EDS2-) acts as a divergent linker in both [UO2(EDS)(H2O)(3)] (6) and [(UO2)(2)(EDS)(OH)(2)(phen)(2)]center dot 4H(2)O (7). 1D polymers are formed in both cases, the doubly monodentate EDS2- ligand bridging isolated uranyl ions in 6 or hydroxo-bridged uranyl dimers in 7. Sulfonate coordination to the 5f cation is present in all these complexes but 5, even in the absence of synergistic effects exerted by the stronger carboxylate ligating groups, and the variety of structures obtained in this as well as in previous work demonstrates that, together with the more investigated phosphonates, sulfonates are anions of great potential for the synthesis of actinide-organic coordination polymers and frameworks

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1-D and 2-D lanthanide coordination polymers constructed from 4-sulfobenzoate and 1,10-phenanthroline

Cited by 19 publications

References 23 publications

Solvent Influence in Obtaining Diverse Coordination Symmetries of Dy(III) Metal Centers in Coordination Polymers: Synthesis, Characterization, and Luminescent Properties

Solvent Influence in Obtaining Diverse Coordination Symmetries of Dy(III) Metal Centers in Coordination Polymers: Synthesis, Characterization, and Luminescent Properties

Crystal Structures, Thermal Properties, and Biological Activities of a Series of Lanthanide Compounds with 2,4-Dichlorobenzoic Acid and 1,10-Phenanthroline

Molecular and Polymeric Uranyl and Thorium Complexes with Sulfonate‐Containing Ligands

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