We have synthesized Ni(II) and Al(III) 10-azacorroles through coordination-induced cyclisation of nitrogen-bridged bisdipyrrins. Al(III) 10-azacorrole displayed contrasting optoelectronic behaviours from Ni(II) 10-azacorrole, underlining the different electronic effects of the azacorrole ligand from the porphyrin.
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http://dx.doi.org/10.1039/c5cc10247b | DOI Listing |
Sci Rep
May 2024
Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, 45371-38791, Iran.
This study is the first application of a PVDF-HFP-based polymer inclusion membrane incorporating the poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and di(2-ethylhexyl)phosphoric acid (D2EHPA) as the base polymer and extractant for the extraction of bismuth(III), respectively. It is demonstrated that the PIM comprised of 60 wt% PVDF-HFP and 40 wt% D2EHPA is the most effective in the extraction of bismuth(III) from feed solution containing 20 mg L bismuth(III) and 0.2 mol L sulfate adjusted to pH 1.
View Article and Find Full Text PDFAnal Sci
August 2024
Department of Applied Chemistry, University of Miyazaki, 1-1 Gakuen Kibanadai Nishi, Miyazaki, 889-2192, Japan.
Extraction ability of N,N-dioctylthiodiglycolamic acid (T-DODGAA), a soft-base sulfur donor ligand with an amide group and a carboxylic acid connected by a thioether chain, for 56 metal ions have been comprehensively investigated and compared with that of N,N-dioctyldiglycolamic acid (DODGAA) with an etheric oxygen atom, a hard-base donor. The acid dissociation constant (pK) of the thiodiglycolamic acid framework was determined to be 3.71 ± 0.
View Article and Find Full Text PDFBiotechnol J
January 2024
Biosensor Group, Korea Institute of Science and Technology Europe Forschungsgesellschaft mbH, Saarbrücken, Germany.
Phage display technology employs a library of engineered filamentous M13 viruses infecting only bacteria. In this study, the genuine phage display selection technique was applied to identify a Pb(II) specific peptide. After three rounds of positive selection against Pb(II) coated agarose-based beads and the consecutive negative screenings against interfering metal ions (Al(III), Co(II), Fe(III), Ni(II), and Zn(II)), a final phage library with enhanced Pb(II) binding was obtained.
View Article and Find Full Text PDFLuminescence
March 2023
National Oil Company, Iraq Drilling Company, Baghdad, Iraq.
A simple, rapid, sensitive and inexpensive approach is described in this work based on a combination of solid-phase extraction of 8-hydroxyquinoline (8HQ), for speciation and preconcentration of Cr(III) and Cr(VI) in river water, and the direct determination of these species using a flow injection system with chemiluminescence detection (FI-CL) and a 4-diethylamino phenyl hydrazine (DEAPH)-hydrogen peroxide system. At different pH, the two forms of chromium [Cr(III) and Cr(VI)] have different exchange capacities for 8HQ, therefore two columns were constructed; the pH of column 1 was adjusted to pH 3 for retaining Cr(III) and column 2 was adjusted to pH 1 for retaining of Cr(VI). The sorbed Cr(III) and Cr(VI) species were eluted from columns using 3.
View Article and Find Full Text PDFJ Am Chem Soc
January 2023
Center for Hierarchical Waste Form Materials, University of South Carolina, Columbia, South Carolina29208, United States.
A series of quaternary Np(IV) fluorides was synthesized using a mild hydrothermal synthesis approach. The compositions are all of the type NaMNpF, where M = Ti(III), V(III), Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Al(III), and Ga(III) and = 4 for divalent metals, = 3 for trivalent metals. The compounds all crystallize in the -31 space group and are isotypic with actinide analogues NaMAnF (An = Ce, U, Th, Pu).
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