Cluster/cage-based coordination polymers with tetrazole derivatives

Kang, Xiaomin; Tang, Meng-Hua; Yang, Ganglong; Zhao, Bin

doi:10.1016/j.ccr.2020.213424

Cited by 53 publications

(25 citation statements)

References 297 publications

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“…The tetrazole core has a wide spectrum of applications, ranging from coordination chemistry [155] , [156] to propellant components of rockets based on their energetic properties [157] . The Habibi group [158] haa successfully synthesized a library of tetrazole derivatives ( 47 ) using FeCl 3 /SiO 2 (3 w/w%) as a reusable, low-cost catalyst, under ultrasound or conventional methods, in a solvent-free media via MCR condensation of aryl amines ( 17 ), sodium azide and triethylorthoformate ( 46 ) ( Scheme 18 ).…”

Section: Ultrasound-assisted Mcrs Under Heterogeneous Catalysismentioning

confidence: 99%

Greener organic synthetic methods: Sonochemistry and heterogeneous catalysis promoted multicomponent reactions

Machado

Santos

Januario

et al. 2021

Ultrasonics Sonochemistry

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Section: Ultrasound-assisted Mcrs Under Heterogeneous Catalysismentioning

confidence: 99%

Greener organic synthetic methods: Sonochemistry and heterogeneous catalysis promoted multicomponent reactions

Machado

Santos

Januario

et al. 2021

Ultrasonics Sonochemistry

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“…In these conditions, no precipitation was observed. These studies allowed the determination of M p L q (2p-q) (M = Cd(II) or Pb(II)) species with different stoichiometry, depending on the behaviour of the metal under study [20,21]. The models were chosen so as to be as simple and probable as possible taking into account the percentages of complex formation and statistical parameters (standard deviation on equilibrium constants and on the fitting values of the systems).…”

Section: Complex Formation and Species Distribution In Solutionmentioning

confidence: 99%

“…However, a bipyramidal pentagonal stereochemistry with seven coordinates is also observed. To the best of our knowledge, only one example of a Pb-cluster with tetrazole derivative has been prepared and characterized for its chemical structure and properties [20]. After the accidental discovery of the first tetrazole complex, tetrazole derivatives with four nitrogenelectron-donating atoms as ligands have attracted more and more attention.…”

Section: Introductionmentioning

confidence: 99%

Polyazulene-Based Materials for Heavy Metal Ion Detection. 3. (E)-5-((6-t-Butyl-4,8-dimethylazulen-1-yl) diazenyl)-1H-tetrazole-Based Modified Electrodes

et al. 2021

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A recently synthesized azulene-tetrazole molecular receptor is proposed in this paper to continue the series of azulene substituted compounds that have been developed to build polyazulene-based materials for heavy metal (HM) ion detection. This study focuses on characterization of (E)-5-((6-t-butyl-4,8-dimethylazulen-1-yl) diazenyl)-1H-tetrazole (L) by electrochemical techniques in view of its use for designing electrochemical sensors for HM ion complexation. The character of redox processes was proved by cyclic, differential pulse, and rotating disk electrode voltammetry. An in-depth thermodynamic study of the complexation properties of the free ligand with Pb(II) and Cd(II) from aqueous solutions was performed, and the stoichiometry and stability constant values were determined. Chemically modified electrodes (CMEs) based on L (L-CMEs) prepared by controlled potential electrolysis (CPE) at different applied potentials and charges were characterized by cyclic voltammetry and electrochemical impedance spectroscopy (EIS). Their surface morphology was examined by scanning electron microscopy (SEM). The complexing properties of L-CMEs were investigated towards the detection of HM ions by anodic stripping and compared to the stability constants of the complexes in solution. Voltametric curves showed well-defined peaks for Pb (II), Cd (II), Cu (II) and Hg (II), but the responses differ from each other and vary depending on the ion concentrations in the accumulation solutions. The best results were obtained for Pb(II) and Cd(II) ions. The results obtained for Pb(II) are promising and can be used for its analysis in water solutions (detection limit of about 10−9 M).

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“…Cluster-based coordination polymers (CCPs) have received significant attention over the past decade due to their promising potential as multifunctional materials for technological and industrial applications [1][2][3][4][5][6]. Typically, CCPs are constructed from metal coordination clusters that are bridged by polytopic organic ligands forming multidimensional systems such as one-dimensional (1D) chains, two-dimensional (2D) layers and three-dimensional (3D) metal-organic frameworks (MOFs) [7].…”

Section: Introductionmentioning

confidence: 99%