Pyridinium N-Phenolate Betaine Dyes

VG Machado, RI Stock, C Reichardt - Chemical Reviews, 2014 - ACS Publications
It is well-known that the solvent can strongly influence the course, rate, and equilibrium
position of many chemical reactions. 1, 2 The position and intensity of the bands in the …

Solvent effect on complexation reactions

M Payehghadr, SE Hashemi - Journal of Inclusion Phenomena and …, 2017 - Springer
The solvent nature plays a critical role in stabilizing the complexation process. Several
models were used for describing the solvent–solute interactions in complex reactions. One …

Tautomerism, solvatochromism, preferential solvation, and density functional study of some heteroarylazo dyes

AG Gilani, V Taghvaei, EM Rufchahi… - Journal of Molecular …, 2019 - Elsevier
Photophysical characteristics of four synthesized heteroarylazo quinoline dyes were studied
in various media with different solvatochromic parameters. Preferential solvation of the …

Effects of solvent properties on the anion binding of neutral water-soluble bis (cyclopeptides) in water and aqueous solvent mixtures

F Sommer, Y Marcus, S Kubik - ACS omega, 2017 - ACS Publications
In this study, the anion-binding bis (cyclopeptide) 2 is introduced, which dissolves freely in
water, affording up to 10 mM concentrations, thanks to triethylene glycol-derived substituents …

Study of natural anthraquinone colorants by EPR and UV/vis spectroscopy

Z Machatová, Z Barbieriková, P Poliak, V Jančovičová… - Dyes and …, 2016 - Elsevier
The spectroscopic study was performed on 9, 10-anthraquinone derivatives (purpurin,
alizarin, carminic acid, and 2-(hydroxymethyl)-9, 10-anthraquinone) in dimethylsulfoxide in …

Studies on solvatochromic behavior of dyes using spectral techniques

MA Rauf, S Hisaindee - Journal of Molecular Structure, 2013 - Elsevier
This paper is a compilation of recent studies on solvatochromism, with particular emphasis
on azo dye solutions. It provides a brief account of solvent–dye interactions and their effect …

Nitro-substituted 4-[(phenylmethylene) imino] phenolates: solvatochromism and their use as solvatochromic switches and as probes for the investigation of preferential …

LG Nandi, F Facin, VG Marini… - The Journal of …, 2012 - ACS Publications
Four 4-[[(4-nitrophenyl) methylene] imino] phenols (2a–d) were synthesized. After
deprotonation in solution, they formed the solvatochromic phenolates 3a–d, which revealed …

Study of the behavior of the 4-DASPI dye in samples of silicate hydrogel by fluorescence spectroscopy and quantum chemistry

A Medvedeva, N Dubinets, A Koshkin… - Journal of Molecular …, 2024 - Elsevier
Abstract The behavior of the 4-[4-(dimethylamino) styryl]-1-methylpyridinium iodide (4-
DASPI) dye in samples of silicate hydrogel obtained from tetrakis (2-hydroxyethyl) …

Origin of strong synergism in weakly perturbed binary solvent system: a case study of primary alcohols and chlorinated methanes

S Gupta, SR Rather, M Kundu… - The Journal of Physical …, 2011 - ACS Publications
A strong synergistic solvation was observed for the mixtures of hydrogen bond donating and
accepting solvent pairs. The nature of the interactions between two solvent pairs was …

Solvatochromic behavior of dyes with dimethylamino electron‐donor and nitro electron‐acceptor groups in their molecular structure

CEA De Melo, LG Nandi, M Domínguez… - Journal of Physical …, 2015 - Wiley Online Library
Six dyes with N, N‐dimethylaminophenyl and 4‐nitrophenyl or 2, 4‐dinitrophenyl groups in
their molecular structures were prepared and characterized. These compounds have …