Results 21 to 30 of about 209,291 (274)
Macedonian Journal of Chemistry and Chemical Engineering, 2010 The influence of the polarity of the solvent and hydrogen bonding on the electronic absorption spectra of some previously synthesized substituted 1,2,4-triazoline-3-thiones was studied.
Mirjana Jankulovska +4 more
doaj +1 more source
Origin of High Efficiency and Long-Term Stability in Ionic Liquid Perovskite Photovoltaic
Research, 2020 Environment-friendly protic amine carboxylic acid ionic liquids (ILs) as solvents is a significant breakthrough with respect to traditional highly coordinating and toxic solvents in achieving efficient and stable perovskite solar cells (PSCs) with a ...
Lingfeng Chao +21 more
doaj +1 more source
Solvent effects on photodegradation of CI Reactive Orange 16 by simulated solar light [PDF]
Hemijska Industrija, 2008 Organic solvents may appear in wastewaters and other industrial waste streams containing dyes, therefore, their photodegradation catalyzed by TiO2 should be investigated.
Mijin Dušan Ž. +3 more
doaj +1 more source
2,5-PRODAN Derivatives as Highly Sensitive Sensors of Low Solvent Acidity
Molecules, 2014 Two 5-acyl-2-dimethylaminonaphthalene derivatives, one with a propionyl group and the other with a fused cyclohexanone ring, are investigated as sensors of H-bond-donating ability in protic solvents of low solvent acidity.
Alexandra H. Yoon +3 more
doaj +1 more source
Solvatochromism studies on UV spectra of 4,5-disubstituted-1,2,4-triazoline-3-thiones
Macedonian Journal of Chemistry and Chemical Engineering, 2012 The influence of a series of organic solvents on the UV spectra of investigated 1,2,4-triazoles, was studied by implementing solvatochromic theory.
Vesna B. Dimova +1 more
doaj +1 more source
Carbohydrate Polymer Technologies and Applications, 2023 Traditional methods to obtain cellulose nanocrystals typically involve mechanical and chemical processes and develop an improved process in terms of efficiency, sustainability, and the quality of CNCs produced are interesting.
Jania Betania Alves da Silva +9 more
doaj +1 more source
Functionalized Oxatriquinanes and Their Structural Equilibrium in Protic Solvent
Chemical and Pharmaceutical Bulletin, 2014 We synthesized oxatriquinane hexafluorophosphate bearing an ethoxycarbonylmethyl group 7 or a 2-oxopropyl group 11. Both of these organic oxonium cation compounds were obtained as stable solids. However, (1)H-NMR analysis showed that oxatriquinane 7 was present as the oxonium cation in aprotic solvent CD₃CN, but was in rapid equilibrium with ring ...
Suzuki, Hideyuki, Muratake, Hideaki
openaire +3 more sources
New organic solvents based on carbohydrates [PDF]
, 2007 Nature provides a vast new vista of opportunities for the preparation of new recyclable solvents. Natural compounds have been recently used to prepare the cationic or anionic moiety of room temperature ionic liquids.
Imperato, Giovanni
core +1 more source
Water, Alcohols, Amines, and Amides as Formal Hydrogen-Atom-Transfer Reagents Through Activation With Redox-Active Lewis Acids. [PDF]
Angew Chem Int Ed EnglProtic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Vojáčková P, Studer A.
europepmc +3 more sources
Chemosensors, 2022 Twisting intramolecular charge transfer (TICT) is a common nonradiative relaxation pathway for a molecule with a flexible substituent, effectively reducing the fluorescence quantum yield (FQY) by swift twisting motions.
Jiawei Liu, Cheng Chen, Chong Fang
doaj +1 more source