New copper(II) complexes with sterically hindered oxamato ligand: Synthesis, crystal structures, spectroscopic properties
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2019.127468
Abstract: Abstract We report the synthesis, crystal structures and spectroscopic properties of two new copper (II) complexes of formula (NMe4)2 [Cu(bpea)2] (1) and (NBu4)2 [Cu(bpea)2]·2.5H2O (2) [bpea = N-2,2-diphenylethyloxamate]. Crystal structures of complexes 1 and 2 were solved… read more here.
Keywords: structures spectroscopic; crystal structures; spectroscopic properties; geometry ... See more keywords
Two new copper (II) carboxylate complexes based on N,N,N',N'-tetramethylethyleneamine: Synthesis, crystal structures, spectral properties, dft studies and hirshfeld surface analysis
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2021.129916
Abstract: Abstract In this study, two new copper (II) carboxylate complexes, [Cu(4-mba)2(tmeda)](1) and [Cu(3-mba)2(H2O)2(tmeda)](2) (4-mbaH = 4-methylbenzoic acid, 3-mbaH = 3-methylbenzoic acid, tmeda = N,N,N',N'-tetramethylethyleneamine) were synthesized. The structures and properties of the complexes were determined by X-ray single crystal diffraction method… read more here.
Keywords: two new; hirshfeld surface; new copper; copper carboxylate ... See more keywords
Classical hydrogen bonding and stacking of chelate rings in new copper(ii) complexes.
Sign Up to like & getrecommendations! Published in 2017 at "Dalton transactions"
DOI: 10.1039/c6dt04661d
Abstract: Three new copper(ii) complexes, viz., [Cu(L)(NO3)(H2O)]H2O 1, [Cu(L)(H2O)2]NO32 and [Cu2(L)2(pyrazine)](ClO4)2·4H2O 3, were prepared using a biomimetic synthesis strategy [HL = 4-chloro-2-{(E)-[2-(pyridin-2-yl)hydrazinylidene]methyl}phenol]. Structural characterization revealed very different local geometries around copper(ii) ions, being square pyramidal for… read more here.
Keywords: copper complexes; classical hydrogen; copper; stacking chelate ... See more keywords
Synthesis of two new copper-sandwiched polyoxotungstates and the influence of nuclear number on catalytic hydrogen evolution activity
Sign Up to like & getrecommendations! Published in 2020 at "New Journal of Chemistry"
DOI: 10.1039/d0nj02065f
Abstract: To focus on renewable energy, we have been devoted to developping energy-efficient, robust and low cost water reduction catalysts (WRCs). Two hybrid inorganic–organic hexa/octa-CuII-sandwiched POM: [Cu(dap)2]2[{Cu8(dap)4(H2O)2} (SiW9O34)2]·7H2O (1) and [Cu(dap)2(H2O)]2[Cu(dap)2]2[{Cu6(dap)2}(SiW9O34)2]·8H2O (2) (dap = 1,2-diaminopropane, 1,4-H2NDC… read more here.
Keywords: chemistry; new copper; dap; nuclear number ... See more keywords
New copper(I) complexes of bulky 5-substituted-2-iminopyrrolyl ligands as catalysts for azide-alkyne cycloaddition.
Sign Up to like & getrecommendations! Published in 2023 at "Dalton transactions"
DOI: 10.1039/d3dt00617d
Abstract: Five dinuclear copper(I) complexes of the type [Cu{κN,κN'-5-R-NC4H2-2-C(H)N(2,6-iPr2C6H3)}]2 (1a-e; R = 2,4,6-iPr3C6H2 (a), R = 2,6-Me2C6H3 (b), R = 3,5-(CF3)2C6H3 (c), R = 2,6-(OMe)2C6H2 (d), R = CPh3 (e)) were prepared by the reaction of… read more here.
Keywords: oxidation; copper; substituted iminopyrrolyl; catalysts azide ... See more keywords
Synthesis and crystal structure of a new copper(II) complex based on 5-ethyl-3-(pyridin-2-yl)-1,2,4-triazole
Sign Up to like & getrecommendations! Published in 2023 at "Acta Crystallographica Section E: Crystallographic Communications"
DOI: 10.1107/s2056989023003079
Abstract: A new copper(II) coordination compound [Cu2(L Et)2(OAc)2(dmf)2], where HL Et = 3-(2-pyridyl)-5-ethyl-1,2,4-triazole, was synthesized and structurally characterized by single-crystal X-ray diffraction. read more here.
Keywords: copper complex; copper; synthesis crystal; structure new ... See more keywords
New copper carboxylate pyrene dimers: synthesis, crystal structure, Hirshfeld surface analysis and electrochemical characterization
Sign Up to like & getrecommendations! Published in 2024 at "Acta Crystallographica Section E: Crystallographic Communications"
DOI: 10.1107/s2056989023010277
Abstract: Two new copper dimers, [Cu2(pyr-COO–)4(DMSO)2] (1) and [Cu2(pyr-COO–)4(DMF)2] (2) (pyr = pyrene) were synthesized from the reaction of pyrene-1-carboxylic acid, copper(II) nitrate and triethylamine from solvents DMSO and DMF, respectively. Electrochemical characterization and Hirshfeld surface… read more here.
Keywords: surface analysis; electrochemical characterization; pyrene; new copper ... See more keywords
Efficacy analysis of new copper complex for visible light (455, 530 nm) radical/cationic photopolymerization: The synergic effects and catalytic cycle
Sign Up to like & getrecommendations! Published in 2022 at "PLoS ONE"
DOI: 10.1371/journal.pone.0270679
Abstract: The kinetics and the conversion features of two 3-component systems (A/B/N), based on the proposed new kinetic schemes of Mokbel and Mau et al, in which a visible LED is used to excite a copper… read more here.
Keywords: catalytic cycle; copper complex; new copper; synergic effects ... See more keywords
New Copper Alloys Used to Make Products Intended for Contact with Drinking Water
Sign Up to like & getrecommendations! Published in 2021 at "Materials"
DOI: 10.3390/ma14216301
Abstract: This article presents the results of tests conducted as part of a research project with the primary objective of developing new copper alloys with limited lead content. The new group of materials were created in… read more here.
Keywords: group alloys; copper alloys; new copper; alloys used ... See more keywords
Investigation of Electrode Cap Life Made of New Cu–Cr–Zr Copper Alloys with Scandium Addition Dedicated for Resistance Spot Welding of Galvanized Steel Sheets
Sign Up to like & getrecommendations! Published in 2025 at "Materials"
DOI: 10.3390/ma18214950
Abstract: This study presents results on developing new copper alloys for electrode caps used in resistance spot welding (RSW) of galvanized steel sheets. Two copper alloys—CuCr0.7Zr0.05 and CuCr0.3Ni0.1Zr0.05—were modified with scandium (Sc) additions of 0.01 and… read more here.
Keywords: resistance spot; new copper; copper; life ... See more keywords
X-ray Crystal Structure, Geometric Isomerism, and Antimicrobial Activity of New Copper(II) Carboxylate Complexes with Imidazole Derivatives
Sign Up to like & getrecommendations! Published in 2018 at "Molecules"
DOI: 10.3390/molecules23123253
Abstract: Five new copper(II) acrylate complexes (acr is the acrylate anion: C3H3O2) with imidazole derivatives (2-methylimidazole/2-MeIm, 5-methylimidazole/5-MeIm, 2-ethylimidazole/2-EtIm) of type: cis-[Cu(2-RIm)2(acr)2]·xH2O ((1): R = –CH3, x = 2; (4): R = –CH2–CH3, x = 0), trans-[Cu(2-RIm)2(acr)2]… read more here.
Keywords: ch3; antimicrobial activity; copper; imidazole derivatives ... See more keywords