Results 1 to 10 of about 10,338 (283)

Preferential Solvation of Zwitterionic Benzo-[f]-Quinolinium Ylids in Binary Solvent Mixtures: Spectral Study and Quantum Chemical Calculations [PDF]

Molecules
Three derivatives of benzo-[f]-quinolinium ylids, which all underwent an intermolecular charge transfer process, were used as solvatochromic indicators to study the specific solvent–solute interactions in binary mixtures of protic–aprotic solvents with ...
Mihaela Iuliana Avadanei, Ovidiu Gabriel Avadanei, Dana Ortansa Dorohoi   +2 more
doaj   +2 more sources

FA Polymerization Disruption by Protic Polar Solvents [PDF]

Polymers, 2018
Furfuryl alcohol (FA) is a biobased monomer derived from lignocellulosic biomass. The present work describes its polymerization in the presence of protic polar solvents, i.e., water or isopropyl alcohol (IPA), using maleic anhydride (MA) as an acidic initiator.
Falco, Guillaume, Guigo, Nathanaël, Vincent, Luc, Sbirrazzuoli, Nicolas   +3 more
openaire   +5 more sources

Insights into impact of polar protic and aprotic solvents on bioactive features of 3-(Dimethylaminomethyl)-5-nitroindole: A DFT study and molecular dynamics simulations. [PDF]

PLoS ONE
Polar protic and aprotic solvents can effectively simulate the maturation of breast carcinoma cells. Herein, the influence of polar protic solvents (water and ethanol) and aprotic solvents (acetone and DMSO) on the properties of 3-(dimethylaminomethyl)-5-
Stève-Jonathan Koyambo-Konzapa, Berthelot S D Ramlina Vamhindi, Bekzod Khudaykulov, Peter A Sidhom, Shahzeb Khan, Ashraf M M Abdelbacki, Alaa H M Abdelrahman, Mahmoud A A Ibrahim   +7 more
doaj   +2 more sources

Decoupling Electron and Proton Transfer in Noncontact Catalytic Hydrogenation of Nitroaromatics [PDF]

Advanced Science
Understanding the elementary reactions of active hydrogen species and electron transfer mechanisms during catalytic hydrogenation remains a fundamental challenge.
Zhongyin Liang, Qingyuan Wu, Zhe Yang, Nanfeng Zheng   +3 more
doaj   +2 more sources

Reactivity of cyclohex-1-enylcarboxylic and 2-methylcyclohex-1-enylcarboxylic acids with diazodiphenylmethane in aprotic solvents [PDF]

Journal of the Serbian Chemical Society, 2000
Rate constants for the reaction of diazodiphenylmethane with cyclohex-1-enylcarboxylic acid and 2-methylcyclohex-1-enylcarboxylic acid were determined in nine aprotic solvents, as well as in seven protic solvents, at 30°C using the appropriate ...
Nikolić Jasmina B., Ušćumlić Gordana S., Krstić Vera V.   +2 more
doaj   +3 more sources

Investigations of the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents. Part II. Pyridine mono-carboxylic acid N-oxides [PDF]

Journal of the Serbian Chemical Society, 2006
The rate constants for the reaction of three isomeric pyridine mono-carbocylic acid N-oxides with diazodiphenylmethane were determined at 30 ºC in thirty two protic and aprotic solvents by the well known UV spectrophotometric method.
MILICA MISIC-VUKOVIC, ALEKSANDAR D. MARINKOVIC, BRATISLAV Z. JOVANOVIC, SASA Z. DRMANIC   +3 more
doaj   +3 more sources

Post-modification of PLLA nanofiber nonwovens by various solvent treatments

Current Directions in Biomedical Engineering, 2023
Degradable polymeric Biomaterials, such as polylactic acid, are widely used in medical field as bioresorbable implant coatings. More recently, stent covers, implantable tubes or wound dressings made from electrospun nanofibers have been developed.
Götz Andreas, Reske Thomas, Oschatz Stefan, Grabow Niels, Illner Sabine   +4 more
doaj   +1 more source

Investigations of the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents, Part I: Pyridine mono-carboxylic acids [PDF]

Journal of the Serbian Chemical Society, 2005
Rate constants for the reaction of diazodiphenylmethane with isomeric pyridine carboxylic acids were determined in chosen protic and aprotic solvents at 30 °C, using the well known UV spectrophotometric method.
Marinković Aleksandar D., Drmanić Saša Ž., Jovanović Bratislav Ž., Mišić-Vuković Milica M.   +3 more
doaj   +1 more source

Solvent effect on electronic absorption spectra of cyclohex-1-enylcarboxylic and 2-methylcyclohex-1-enylcarboxylic acids [PDF]

Journal of the Serbian Chemical Society, 2000
The ultraviolet absorption spectra of cyclohex-1-enylcarboxylic acid and 2-methylcyclohex-1-enylcarboxylic acid were determined in six protic and nine aprotic solvents in the wavelength range from 200 to 400 nm.
VERA V. KRSTIC, GORDANA S. USCUMLIC, JASMINA B. NIKOLIC   +2 more
doaj   +2 more sources

Solvent effect on electronic absorption spectra of some 2-aminobenzimidazoles [PDF]

Acta Periodica Technologica, 2002
The effect of protic and aprotic solvents on electronic apsorption spectra of 1-(3-X-benzil)-2-aminobenzimidazoles (X=CH3;OCH3; Cl) was examined. UV-apsorption spectra (200-400 nm) were recorded in five protic and four aprotic solvents. Batochromic shift
Perušić-Janjić Nada U., Janjić Jevrem D., Podunavac-Kuzmanović Sanja O.   +2 more
doaj   +1 more source