Results 41 to 50 of about 2,560 (205)

Redirecting Excited‐State Proton Transfer Through Supramolecular Polymerization in Nanoconfinement

Angewandte Chemie, EarlyView.
Supramolecular confinement redirects the excited‐state proton transfer pathway of an amphoteric emitter. In water, the molecule undergoes ESPD, whereas co‐assembly with γ‐cyclodextrin forms nanotubes that template slip‐stacked emitter pairs and enable ESIMPT. Structural and photophysical characterization of the assemblies shows that the preorganization
Luis C. Pantaleone, Robert Hutchings, Bente Reus, Jacopo Martinelli, Alessia Lasorsa, Patrick C. A. van der Wel, Marc C. A. Stuart, Wesley R. Browne, Tibor Kudernac   +8 more
wiley   +2 more sources

Solvatochromic parameters of imidazolium-, hydroxyammonium-, pyridinium- and phosphonium-based room temperature ionic liquids [PDF]

, 2016
Solvatochromic solvent parameters of different room temperature ionic liquids based on the imidazolium, hydroxyammonium, pyridinium and phosphonium cations, namely 1-butyl-3-methyl imidazolium hexafluorophosphate, 1-hexyl-3-methyl imidazolium ...
Reta, Mario Roberto, Padró, Juan Manuel
core   +1 more source

Kinetic parameters of ionizing power of solvents. The nature of solvation effects in heterolysis of 2-aryl-2-chloroadamantanes

Журнал органічної та фармацевтичної хімії, 2020
Aim. To find out the possibility of using tertiary substrates as benchmarks for determining the kinetic parameters of the ionizing ability of solvents Y. Results and discussion.
Oleksandr I. Vasylkevych, Iryna I. Koshchii, Genryh F. Dvorko   +2 more
doaj   +1 more source

Measurement of relative static permittivity and solvatochromic parameters of binary and ternary CO2-expanded green solvents

, 2021
CO2-expanded liquids (CXLs) is a class of solvent systems giving relatively low viscosity in comparison to neat organic solvents. The challenge is to achieve a high overall polarity of the CXL, despite the presence of compressed liquid CO2. In this study,
Andersson, Martin, Sandahl, Margareta,, Cunico, Larissa P.,, Norberg, Mynta, Klintberg, Lena, Cunico, Larissa P., Norberg, Mynta,, Turner, Charlotta, Klintberg, Lena,, Turner, Charlotta,, Cui, Jingwen, Andersson, Martin,, Cui, Jingwen,, Lund University., Sandahl, Margareta   +14 more
core   +1 more source

The reactivity of α,β-unsaturated carboxylic acids. Part XVI. The kinetics of the reaction of cycloalkenecarboxylic and cycloalkenylacetic acids with diazodiphenylmethane in various alcohols [PDF]

Journal of the Serbian Chemical Society, 2002
The rate constants for the reaction of diazodiphenylmethane with 1-cyclopentenecarboxylic, 1-cycloheptenecarboxylic, cyclopent-1-enylacetic and cyclohept-1-enylacetic acids were determined in eight alcohols at 30 ºC using the appropriate UV-spectroscopic
Ušćumlić Gordana S., Nikolić Jasmina B., Krstić Vera V.   +2 more
doaj   +1 more source

Solvatochromic and Solubility Parameters of Solvents: Equivalence of the Scales and Application to Probe the Solubilization of Asphaltenes

, 2016
The oil compatibility model is important for assessing the stability of crudes. The compatibility between maltenes and the corresponding asphaltenes, Asphs, can be assessed from the solubility parameters (Hildebrand and Hansen) of both components of the ...
Omar A. El Seoud (1537753), André B. Gonçalves (2804548), Vanessa N. Linhares (2804542), Raphael A. de Lira (2804554), Marcia C. K. de Oliveira (2804539), Francis A. Meireles (2804557), Gaspar Gonzalez (2804545), Luzia P. Novaki (2804551), Edgar O. Moraes (2804536)   +8 more
core   +1 more source

Solvatochromic Parameters of Deep Eutectic Solvents: Effect of Different Carboxylic Acids as Hydrogen Bond Donor

, 2020
The physicochemical properties of carboxylic acid-based deep eutectic solvents (DESs) were measured by solvatochromic probes: Nile red, N,N-diethyl-4-nitroaniline, and 4-nitroaniline. UV–vis absorbance of these probes was computed with temperature in the
Amos K. Dwamena (8250270), Douglas E. Raynie, Douglas E. Raynie (8250273), Amos K. Dwamena   +3 more
core   +1 more source

Investigation of physical and electrochemical behaviour of N-sulfonic acid functionalized cyclic-ammonium based Brӧnsted acidic ionic liquids in molecular solvents

Journal of Ionic Liquids, 2023
Two types of six Brӧnsted acidic ionic liquids of N-SO3H tethered cyclic ammonium cations (five, six and seven membered) with four anions namely [AcO]−, [HSO4]−, [BF4]−, [PF6]− were synthesized to evaluate their physical and electrochemical behavior in ...
Kabita Boruah, Shahnaz Rohman, Ankur K. Guha, Sukanya Das, Ruli Borah   +4 more
doaj   +1 more source

Weakly‐Coordinating Non‐Fluorinated Diluents for Local High‐Concentration Electrolytes in Advanced Lithium Metal Batteries

Advanced Materials, EarlyView.
This perspective critically evaluates non‐fluorinated diluents in local high‐concentration electrolytes, categorizing their solvation behavior, interfacial mechanisms, and sustainability potential to guide future electrolyte design for lithium metal batteries.
Yin Cui, Xinrui Li, Nan Jiang, Xinyan Huang, E. Lora da Silva, Ruo Zhao, Tao Yang, Qingxia Liu, Xidong Lin   +8 more
wiley   +1 more source

Solvent effect, dipole moment, and DFT studies of multi donor–acceptor type pyridine derivative

Open Chemistry, 2022
A donor–acceptor substituted derivative 2,6-diamino-4-(3,4,5-trimethoxy-phenyl)-pyridine-3,5-dicarbonitrile (DTPP) has been synthesized and its photophysical properties have been studied.
Alarfaji Saleh S., Al-Sehemi Abdullah G., Pannipara Mehboobali   +2 more
doaj   +1 more source