Results 1 to 10 of about 332,938 (279)

Metal complexes with Schiff-base ligands - pyridoxal and semicarbazide-based derivatives [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
The most important results of extensive studies (syntheses, spectral, magnetic, voltammetric and structural characteristics and biological activity) of metal complexes with pyridoxal semi-, thiosemi- and isothiosemicarbazones are reviewed.
Leovac Vukadin M.   +3 more
doaj   +3 more sources

Syntheses of a Hyperbranched Polymer and Its Performance on Enhanced Oil Recovery

open access: yesFrontiers in Chemistry, 2021
A hyperbranched carboxylate-type polymer was synthesized through esterification and carboxymethylation, and its performance on enhanced oil recovery was experimentally evaluated. The optimum condition for esterification was 8 h at 120°C, where 3% PTSA as
Sanyuan Qiao   +3 more
doaj   +1 more source

Synthesis, Characterization and Antimicrobial Activity of Some New Tetrazole Derivatives from Hydrazones [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
In this investigation, a combination of Z1-Z5 hydrazone compounds is obtained from the reaction between 4-methylbenzohydrazide and aryl-aldehydes. A subsequent unique synthetic approach to the preparation of di-substituted tetrazoles T6-T10 was achieved ...
Ahmed Sajjad, Zainab Al Shuhaib
doaj   +1 more source

Synthesis and Characterization of Layered Double Hydroxides as Materials for Electrocatalytic Applications

open access: yesNanomaterials, 2021
Layered double hydroxides (LDHs) are anionic clays which have found applications in a wide range of fields, including electrochemistry. In such a case, to display good performances they should possess electrical conductivity which can be ensured by the ...
Domenica Tonelli   +3 more
doaj   +1 more source

Network-analysis-guided synthesis of weisaconitine D and liljestrandinine. [PDF]

open access: yes, 2015
General strategies for the chemical synthesis of organic compounds, especially of architecturally complex natural products, are not easily identified. Here we present a method to establish a strategy for such syntheses, which uses network analysis.
Gallego, GM   +8 more
core   +4 more sources

Heteronanotubes: Challenges and Opportunities

open access: yesSmall Science, 2021
The experimental synthesis of 1D van der Waals heterostructures, a class of materials in which different crystallized nanotubes are coaxially nested, was recently demonstrated.
Rong Xiang, Shigeo Maruyama
doaj   +1 more source

Synthesis and characterization of 5-aryl-1,3,4-oxadiazole-2(3h)thione derivatives

open access: yesJournal of Applied Pharmaceutical Research, 2020
1,3,4-oxadiazoles represent a class of heterocyclic five membered compounds it contain two nitrogen and one oxygen of great importance in Pharmaceutical chemistry. This nucleus show four isomeric forms 1,2,4-oxadiazole,1,3,4-oxadiazole, 1,2,5-oxadiazole,
Shailesh Pathak   +3 more
doaj   +1 more source

Structural Effects of Crumpled Graphene and Recent Developments in Comprehensive Sensor Applications: A Review

open access: yesSmall Structures, 2023
Graphene is a 2D honeycomb lattice consisting of a single layer of carbon atoms. Graphene has become one of the most preferred materials for sensor development due to its exceptional electrical, mechanical, and thermal characteristics.
Animesh Sinha, Hongyun So
doaj   +1 more source

Metal complexes of N'-(2-hydroxy-5-phenyldiazenyl) benzylideneisonicotinohydrazide: Synthesis, spectroscopic characterization and antimicrobial activity [PDF]

open access: yesJournal of the Serbian Chemical Society, 2013
A new series of Cu(II), Ni(II), Co(II), Mn(II), Zn(II), Cd(II), Hg(II) , VO(II), UO2(II) , Fe(III) and Ru(III) complexes of N'-(2-hydroxy-5- phenyldiazenyl)benzylideneisonicotinohydrazide(H2L) have been synthesized and characterized by elemental,1H ...
El-Tabl Abdou S.   +2 more
doaj   +1 more source

Synthesis, Structure and Catechol Oxidase Activity of Mono Nuclear Cu(II) Complex with Phenol-Based Chelating Agent with N, N, O Donor Sites

open access: yesCrystals, 2022
A square-planar Cu(II) complex [Cu(L)Cl], 1, with sterically constrained tridentate phenol-based ligand (HL= N,N,N′-trimethyl-N′-(2-hydroxy-3,5-di-tert-butylbenzyl)-ethylenediamine) with N, N, O donor sites has been synthesized.
Trilochan Rakshit   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy