Results 21 to 30 of about 10,134,467 (263)

Solvent-dependent synthesis and mono-hydrolysis of di-Schiff base of (+/-)trans-1,2-cyclohexanediamine and 2-pyridinecarboxaldehyde in Cu(II), Co(II) and Zn(II) complexes [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
The Schiff base ligand trans-N,N′-bis[2-pyridinecarboxylidene] cyclohexane-1,2-diamine (L) was synthesized. This ligand when stirred with 1 equiv of MCl2.xH2O (M = Cu, Co, Zn) in ethanol, undergoes partial hydrolysis of the imino bond and the result ...
Lashanizadegan Maryam, Sarkheil Marzieh
doaj   +1 more source

Solvent dependent in situ growth of NixSy supported on nickel foam as electrocatalysts for oxygen evolution reaction

open access: yesInternational Journal of Electrochemical Science, 2016
In situ growth of NixSy on nickel foam (NixSy/NF) has been investigated by hydrothermal or solvothermal process in water, ethanol and their mixture. XRD shows that the obtained NixSy is consisted of Ni3S2 and NiS in the three solvents.
Yong-Ming Chai   +7 more
doaj   +1 more source

Differentiation of Medicinal Plants According to Solvents, Processing, Origin, and Season by Means of Multivariate Analysis of Spectroscopic and Liquid Chromatography Data

open access: yesMolecules, 2023
Effects of processing and extraction solvents on antioxidant properties and other characteristics were evaluated for ten medicinal plant species originating from two different localities and two production years. A combination of spectroscopic and liquid
Lenka Burdejova   +3 more
doaj   +1 more source

Solvent Effect, Photochemical and Photophysical Properties of Phthalocyanines with Different Metallic Nuclei

open access: yesOrbital: The Electronic Journal of Chemistry, 2017
Photophysical and photochemical properties of lithium phthalocyanine (1), gallium(III) phthalocyanine chloride (2), titanium(IV) phthalocyanine dichloride (3) and iron(II) phthalocyanine (4) were investigated in dimethyl sulfoxide (DMSO), tetrahydrofuran
Charles Biral Silva   +2 more
doaj   +3 more sources

Biodiesel production from jatropha seeds: Solvent extraction and in situ transesterification in a single step [PDF]

open access: yes, 2013
The objective of this study was to investigate solvent extraction and in situ transesterification in a single step to allow direct production of biodiesel from jatropha seeds.
Evon, Philippe   +4 more
core   +1 more source

Effect of Solvents on Electrogenerated Base-Driven Transfer Hydrogenation Reactions

open access: yesMolecules
Transfer hydrogenation is a crucial technology for synthesizing fine chemicals and pharmaceuticals, offering improved safety and convenience over traditional hydrogen methods, although it typically requires external bases.
Jing-Wei Zhu   +5 more
doaj   +1 more source

Cellulose Ether/Citric Acid Systems Loaded with SrTiO3 Nanoparticles with Solvent-Tailored Features for Energy-Related Technologies

open access: yesMolecules
This work aimed to advance the knowledge in the field of eco-friendly dielectrics with applicative relevance for future energy-related technologies. New multicomponent composites were prepared by using a cellulose ether/citric acid mixture as the matrix,
Raluca Marinica Albu   +9 more
doaj   +1 more source

Excited State Dynamics of 8-Vinyldeoxyguanosine in Aqueous Solution Studied by Time-Resolved Fluorescence Spectroscopy and Quantum Mechanical Calculations

open access: yesMolecules, 2020
The fluorescent base guanine analog, 8-vinyl-deoxyguanosine (8vdG), is studied in solution using a combination of optical spectroscopies, notably femtosecond fluorescence upconversion and quantum chemical calculations, based on time-dependent density ...
Lara Martinez-Fernandez   +3 more
doaj   +1 more source

Solvent Effects in the Preparation of Catalysts Using Activated Carbon as a Carrier

open access: yesNanomaterials, 2023
The role of solvents is crucial in catalyst preparation. With regard to catalysts prepared with activated carbon (AC) as the carrier, when water is used as a solvent it is difficult for the solution to infiltrate the AC.
Zhuang Xu   +8 more
doaj   +1 more source

Substituent and Solvent Effect Studies of N-Alkenylnitrone 4π-Electrocyclizations [PDF]

open access: yes, 2022
The roles of substituent and solvent effects in promoting the 4π-electrocyclization of N-alkenylnitrones to give azetidine nitrones have been investigated by experimental examination of relative rates, activation energies, and linear free energy ...
Laura, Alonso   +5 more
core   +2 more sources

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