Mono-and di-quaternized 4, 4′-bipyridine derivatives as key building blocks for medium-and environment-responsive compounds and materials

R Papadakis - Molecules, 2019 - mdpi.com
Mono-and di-quaternized 4, 4′-bipyridine derivatives constitute a family of heterocyclic
compounds, which in recent years have been employed in numerous applications. These …

Solubility of 4-amino-2, 6-dimethoxypyrimidine in aqueous co-solvent mixtures revisited: Solvent effect, transfer property and preferential solvation analysis

M Zheng, A Farajtabar, H Zhao - Journal of Molecular Liquids, 2019 - Elsevier
The preferential solvation parameters of 4-amino-2, 6-dimethoxypyrimidine in four aqueous
co-solvent mixtures of methanol (1)+ water (2), ethanol (1)+ water (2), isopropanol (1)+ water …

[HTML][HTML] Synthesis and (fluoro) solvatochromism of two 3-styryl-2-pyrazoline derivatives bearing benzoic acid moiety: A spectral, crystallographic and computational …

D Matiadis, KE Nowak, E Alexandratou… - Journal of Molecular …, 2021 - Elsevier
In this work we report the synthesis of two fluorescent 2-pyrazoline derivatives exhibiting
remarkable (fluoro) solvatochromic behavior. The pyrazolines were synthesized in one step …

Pyrrole-quinazoline derivative as an easily accessible turn-off optical chemosensor for Cu2+ and resultant Cu2+ complex as a turn-on sensor for pyrophosphate in …

WW Wang, Y Wang, WN Wu, XL Zhao, ZQ Xu… - … Acta Part A: Molecular …, 2020 - Elsevier
Abstract A simple chemosensor, 6-(1H-pyrrol-2-yl)-5, 6-dihydro-benzo [4, 5] imidazo [1, 2-c]
quinazoline (1), was synthesized via simple nucleophilic addition reaction coupled with …

Preferential solvation of a highly medium responsive pentacyanoferrate (II) complex in binary solvent mixtures: Understanding the role of dielectric enrichment and the …

R Papadakis - The Journal of Physical Chemistry B, 2016 - ACS Publications
In this work, the preferential solvation of an intensely solvatochromic ferrocyanide (II) dye
involving a 4, 4′-bipyridine-based ligand was examined in various binary solvent mixtures …

Two new Co (II) coordination polymers based on redox-active ligands: Structure, Chromism and Magnetism

WJ Xu, KP Chen, Y Zhang, Y Ma, QW Li… - Journal of Molecular …, 2021 - Elsevier
By utilizing redox-active ligands [monoquaternized 4, 4′-bipyridines (monoquats) and
naphthalene diimide derivatives] and dicyanamide (dca) bridges, two new Co (II) …

Synthesis and characterization of new azobenzene-containing bis pentacyanoferrate (II) stoppered push–pull [2] rotaxanes, with α-and β-cyclodextrin. Towards highly …

I Deligkiozi, E Voyiatzis, A Tsolomitis, R Papadakis - Dyes and Pigments, 2015 - Elsevier
The solvatochromic behavior of novel synthesized azo-containing viologen-based
rotaxanes, combining push–pull linear and α or β-cyclodextrin macrocyclic components is …

Study of the preferential solvation effects in binary solvent mixtures with the use of intensely solvatochromic azobenzene involving [2] rotaxane solutes

R Papadakis, I Deligkiozi, KE Nowak - Journal of Molecular Liquids, 2019 - Elsevier
In this work we utilize the marked solvatochromism of two cyclodextrin (CD) containing [2]
rotaxanes and their CD-free linear precursor in order to investigate preferential solvation …

The use of a preferential–solvation index (PSI) for the comparison of halochromic systems

C Pastenes, VG Machado, MC Rezende - Journal of Molecular Liquids, 2021 - Elsevier
The study of the influence of salts on the spectral data of solvatochromic probes in solution is
often a subject of difficult interpretation due to the puzzling nature of the species involved …

N‐Methylpyridinium‐4‐phenolates: Generation of a Betaine Dye Library Bearing Different Spacer Units and Their Solvatochromism

HU Reissig, M Domínguez - ChemistrySelect, 2016 - Wiley Online Library
A library of thirteen N‐methylpyridinium‐4‐phenolate betaine dyes was synthesized from 4‐
(4‐methoxyphenyl) pyridines in a three step procedure involving N‐methylation, a …