Five lead(II) coordinated polymers assembled from asymmetric azoles carboxylate ligands: Synthesis, structures and fluorescence properties

Li, Bohan; Huang, Dehua; Zhang, Tianze; Niu, Xiaoge; Liu, Jing; Zhang, Wenjing; Liu, Yan; Liu, Zhongyi; Zhang, Panke; Li, Jinpeng

doi:10.1016/j.ica.2020.120035

Cited by 6 publications

(2 citation statements)

References 68 publications

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“…On the basis of the above considerations, we made a novel bridging ligand containing three carboxylates and one triazole group, namely, 5-(3-methylformate-1 H -1,2,4-triazole-1-methyl)benzen-1,3-dicarboxylate (H 3 mtbd), to join Er(III) and Yb(III) cations to construct two lanthanide-based CPs. Note that H 3 mtbd exhibits splendid characteristics for building up CPs: − (i) It bears several hydrogen donor sites or coordination sites at the N or O atoms on the triazole unit or three carboxylic acids (it is easier to get uncoordinated −COOH under acidic conditions), and the π···π stacking between the aromatic units is helpful in constructing CPs. In addition, H 3 mtbd employs various coordination modes to interact with different metal caions owing to the triazole rotation.…”

Section: Introductionmentioning

confidence: 99%

High Proton Conduction in Two Highly Water-Stable Lanthanide Coordination Polymers from a Triazole Multicarboxylate Ligand

Niu

et al. 2021

Inorg. Chem.

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Two lanthanide coordination polymers (CPs) {[Er(Hmtbd)(H2mtbd)(H2O)3]·2H2O} n (1) and [Yb(Hmtbd)(H2mtbd)(H2O)3] n (2) carrying an N-heterocyclic carboxylate ligand 5-(3-methylformate-1H-1,2,4-triazole-1-methyl)benzen-1,3-dicarboxylate (H3mtbd) were prepared under solvothermal conditions. The single-crystal X-ray diffraction data demonstrate that 1 and 2 are isostructural and display 1D chain structure. Alternating current (AC) impedance measurements illustrate that the highest proton conductivities of 1 and 2 can attain 5.09 × 10–3 and 3.09 × 10–3 S·cm–1 at 100 °C and 98% relative humidity (RH), respectively. The value of 1 exceeds those of most reported lanthanide-based crystalline materials and ranks second among the described Er-CPs under similar conditions, whereas the value for 2 is the highest proton conductivity among the previous Yb-CPs. Coupled with the structural analyses of the two CPs and H2O vapor adsorption, the calculated E a values help to deduce their proton conductive mechanisms. Notably, the N-heterocyclic units (triazole), carboxyl, and hydrogen-bonding network all play key roles in the proton-transfer process. The prominent proton conductive abilities of both CPs show great promise as efficient proton conductors.

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Section: Introductionmentioning

confidence: 99%

High Proton Conduction in Two Highly Water-Stable Lanthanide Coordination Polymers from a Triazole Multicarboxylate Ligand

Niu

et al. 2021

Inorg. Chem.

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“…A modest sonochemical synthesis route is described for this metal organic coordination system's nano-structure. Some new synthesis of nano lead(II) coordination polymer are reported in the literature [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Ultrasound-Assisted Synthesis and DFT Calculations of the Novel 1D Pb (II) Coordination Polymer with Thiosemicarbazone Derivative Ligand and Its Use for Preparation of PbO Clusters

Dadashi

Hanifehpour²,

Mirtamizdoust

et al. 2021

Crystals

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In the present work, using a sonochemical method, a new lead (II) coordination 1D polymer, [Pb(L)2(CH3COO)]n (L = pyridine-4-carbaldehyde thiosemicarbazone) (1) was prepared. It was characterized structurally with different spectroscopic methods, such as SEM, IR spectroscopy, XRD, and elemental analysis. The coordination compound becomes a stair-step one-dimensional polymer in solid mode. The lead (II) ions have the coordination number of six (PbNS3O2) with two oxygen atoms from acetate anion and three sulfur atoms and one nitrogen atom from organic ligand. It contains a stereo-chemically active lone electron pair and the hemidirected coordination sphere. The high-intensity ultrasound is considered a flexible, environmentally friendly, and easy synthetic tool for the coordination compounds. PbO clusters was achieved with thermolyzing 1 at 180 ˚C with oleic acid (as a surfactant). Furthermore, the size and morphology of the created PbO clusters were assessed via SEM. The estimated gap of HOMO and LUMO is 3.275 eV based on DFT calculations.

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Metal–polymer-coordinated complexes as potential nanovehicles for drug delivery

et al. 2021

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Five lead(II) coordinated polymers assembled from asymmetric azoles carboxylate ligands: Synthesis, structures and fluorescence properties

Cited by 6 publications

References 68 publications

High Proton Conduction in Two Highly Water-Stable Lanthanide Coordination Polymers from a Triazole Multicarboxylate Ligand

High Proton Conduction in Two Highly Water-Stable Lanthanide Coordination Polymers from a Triazole Multicarboxylate Ligand

Ultrasound-Assisted Synthesis and DFT Calculations of the Novel 1D Pb (II) Coordination Polymer with Thiosemicarbazone Derivative Ligand and Its Use for Preparation of PbO Clusters

Metal–polymer-coordinated complexes as potential nanovehicles for drug delivery

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