Results 101 to 110 of about 2,560 (205)

Solvatochromic parameters and linear solvation energy relationships for hydrolysis of hydroxamic acids

, 2001
340-344Kinetic solvent effects on hydrolysis of hydroxamic acids of the type R.N (OH). C=O.R'[R=H; R'=CH3, C6H5, C6H4-OH; R=CH3-C6H4Rʹ = C6H5] in aqueous mixtures (10-70% v/v) of some polar protic, polar aprotic and low polarity basic solvents ...
Thakur, Santosh Singh, Ghosh, Kallol K, Tamrakar, Pankaj   +2 more
core  

Solvatochromic Shifts in UV-Vis Absorption Spectra: The Challenging Case of 4-Nitropyridine N-Oxide

, 2016
International audience4-Nitropyridine N-oxide is a well-known molecular probe for which the experimental UV/vis absorption spectrum has been measured in a large number of solvents.
Jacquemin, Denis, Budzak, Simon, Miroslav Medved’, Denis Jacquemin, Adéle D. Laurent, Christian Laurence (1652791), Medved, Miroslav, Laurent, Adele D., Miroslav Medved’ (2572666), Denis Jacquemin (1271727), Laurence, Christian, Adéle D. Laurent (2572669), Šimon Budzák, Christian Laurence, Šimon Budzák (1630234)   +14 more
core   +1 more source

Chromo- and fluorophoric water-soluble polymers and silica particles by nucleophilic substitution reaction of poly(vinyl amine)

Beilstein Journal of Organic Chemistry, 2010
Novel chromophoric and fluorescent carbonitrile-functionalized poly(vinyl amine) (PVAm) and PVAm/silica particles were synthesized by means of nucleophilic aromatic substitution of 8-oxo-8H-acenaphtho[1,2-b]pyrrol-9-carbonitrile (1) with PVAm in water ...
Katja Hofmann, Ingolf Kahle, Frank Simon, Stefan Spange   +3 more
doaj   +1 more source

Solvent Effects on the UV–vis Absorption and Emission of Optoelectronic Coumarins: a Comparison of Three Empirical Solvatochromic Models

, 2016
Coumarins often function in the solution phase for a diverse range of optoelectronic applications. The associated solvent effects on the UV–vis absorption and/or fluorescence spectral shifts of coumarins need to be understood in order that their ...
Xiaogang Liu (367984), Jacqueline M. Cole (1301070), Kian Sing Low (1452340)   +2 more
core   +1 more source

ارتباط بيانات تقسيم الأحماض الكربوكسيلية في أوساط من أنظمه الماء/ والمذيبات العضوية بعوامل التذوب ( Solvatochromic )

, 1994
The partition coefficients of C2-Cg carboxylic acid monomeric forms between water and various organic solvents as well as the dimerization constants have been shown to be well correlated in terms of the solvatochromic parameters; cohesive energy density,
Hegazi, Mohamed F., Fandary, Mohamed S. H. [محمد الفندري]   +1 more
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Solvatochromic Parameters of the Binary Mixtures of Imidazolium Chloride Ionic Liquid Plus Molecular Solvent [PDF]

, 2014
Imidazolium-based chloride ionic liquids (ILs) have exhibited remarkable performance in several important applications such as biomass dissolution and extraction, but their large viscosity is a non-negligible problem.
Hu, Jingyi, Zhu, Wei, Yang, Qiwei, Qian, Guoping, Xing, Huabin   +4 more
core  

Synthesis, Spectroscopic Studies, and Computational Analysis of a Solvatochromic Phthalocyanine Derivative

, 2016
A near-IR absorbing phthalocyanine containing alkylthio and alyklamino substituents along the periphery was determined to have optical properties that vary depending on surrounding solvent environment.
Roberts, Jessica
core   +1 more source

Experimental and DFT computational studies on solvatochromism of alizarin

Results in Chemistry
Herein, solvatochromic behavior and excited state dynamics of alizarin in different solvents are investigated using experimental and theoretical strategies. To quantify solvent-solute interactions, spectral data are analyzed using Bakhshiev, Kausky-Chama-
Hamidreza Jamshidi, Marzieh Golshan, Sepideh Ein Moghassemi, Mahdi Salami Hosseini, Małgorzata Pawlak, Mehdi Salami-Kalajahi   +5 more
doaj   +1 more source

O Papel da agua (ou a sua ausencia) na formação de compostos ricos em energia nos sistemas biologicos [PDF]

, 1997
Tese (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Uma das questões mais fascinantes que já foram levantadas pelos pesquisadores nas últimas décadas refere-se ao estudo dos compostos ricos em energia, tais ...
Machado, Vanderlei Gageiro
core  

The solvatochromic, spectral, and geometrical properties of nifenazone: A DFT/TD-DFT and experimental study

, 2014
The solvatochromic, spectral, and geometrical properties of nifenazone (NIF), a pyrazole-nicotinamide drug, were experimentally and computationally investigated in several neat solvents and in hydro-organic binary systems such as water-acetonitrile and ...
Al-Balawi, Mona, Bani-Yaseen, Abdulilah Dawoud   +1 more
core   +1 more source