The dinuclear title compound, [Pb(2)(C(10)H(6)NO(2))(2)(CH(3)COO)(2)(CH(3)OH)(2)], lies across an inversion center. The methanol-coordinated Pb(II) atom is chelated by the acetate anion as well as by the quinoline-2-carboxyl-ate anion. One O atom of the quinoline-2-carboxyl-ate anion bridges two symmetry-related Pb(II) atoms, forming the dinuclear compound. Aside from the six atoms connected to the Pb(II) atom by regular coordination bonds, the structure features a long Pb⋯O inter-action [3.145 (3) Å] that gives rise to a distorted Ψ-square-anti-prismatic geometry at the metal center. The H atom of the methanol is hydrogen bonded to an O atom of the acetate.
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http://dx.doi.org/10.1107/S1600536810027777 | DOI Listing |
Sci Rep
November 2024
Department of Inorganic Chemistry, Shahid Beheshti University, Tehran, 19839 69411, Iran.
Five metal dithiocarbamate complexes [M(PTHIQDTC)] [where PTHIQDTC is (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline dithiocarbamate anion and M is Ni(II) (1), Sn(II) (2), Hg(II) (3), Pb(II) (4) and Zn(II) (5)] were synthesized from the reaction of MX (X is Cl for 1-3 and OAc for 4-5) with ligand of triethylammonium (S)-1-phenyl-1,2,3,4-tetrahydroisoquinoline dithiocarbamate [EtNH][PTHIQDTC] in methanolic solution at room temperature. The five complexes were characterized by IR, H andC NMR, mass spectrometry, elemental analysis and TGA analysis. Recrystallization of [Zn(PTHIQDTC)] (5) in dimethylsulfoxide (DMSO) converts 5 to [Zn(PTHIQDTC)(DMSO)] (6).
View Article and Find Full Text PDFDalton Trans
December 2024
Institute for Chemical Technologies and Analytics, Division of Structural Chemistry, TU Wien, Getreidemarkt 9/E164-05-1, 1060 Vienna, Austria.
Using the additional parameter pressure (Walker-type multianvil device), the lead(II) oxidotellurate(VI) PbTeO was synthesized at conditions of 8 GPa and 750 °C, and for the first time its crystal structure was determined using single-crystal X-ray diffraction data. PbTeO crystallizes with four formula units in the monoclinic space group 2/ with unit cell parameters = 5.4142(4), = 4.
View Article and Find Full Text PDFBioresour Technol
December 2024
College of Xingzhi, Zhejiang Normal University, Jinhua 321000, China.
Pb(II) sequestration in extracellular polymers-biochar composites (EPS-BC) was explored using macroscopic models and microscopic technology. The results showed that the actual adsorption capacity of EPS-BC was 52.2% lower than the calculated capacity based on adsorption onto pure components due to the interaction of polysaccharide and amide group in extracellular polymers with biochar, which masked the reactive sites related to Pb(II) in EPS-BC.
View Article and Find Full Text PDFAnal Chem
April 2024
Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China.
ACS Appl Mater Interfaces
February 2024
College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
As a common water pollutant, Pb has harmful effects on the nervous, hematopoietic, digestive, renal, cardiovascular, and endocrine systems. Due to the drawbacks of traditional adsorbents such as structural disorder, poor stability, and difficulty in introducing adsorption active sites, the adsorption capacity is low, and it is difficult to accurately study the adsorption mechanism. Herein, vinyl-functionalized covalent organic frameworks (COFs) were synthesized at room temperature, and sulfur-containing active groups were introduced by the click reaction.
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