Results 51 to 60 of about 2,560 (205)

Theoretical and experimental studies on electronic structure and photophysical properties of biological active substituted hydroxyquinolin-2(1H)-one fluorophore

Chemical Physics Impact, 2023
In this study, the solvents effects on the photophysical characteristics of compound 1-(((4-bromophenyl)amino)(4-methoxyphenyl)methyl)-6-hydroxyquinolin-2(1H)-one (4BMHQ) was investigated using several polarity functions such as Kamlet's and Catalan's ...
N. Sunil Kumar, K.N.N. Prasad, S. Chandrasekhar, J. Thipperudrappa   +3 more
doaj   +1 more source

Machine Learning for Green Solvents: Assessment, Selection and Substitution

Advanced Science, EarlyView.
Environmental regulations have intensified demand for green solvents, but discovery is limited by Solvent Selection Guides (SSGs) that quantify solvent sustainability. Training a machine learning model on GlaxoSmithKline SSG, a database of sustainability metrics for 10,189 solvents, GreenSolventDB is developed. Integrated with Hansen solubility metrics,
Rohan Datta, Janhavi Nistane, Abhishek Sose, Harikrishna Sahu, Rampi Ramprasad   +4 more
wiley   +1 more source

Estudos de fluorescência de corantes solvatocrômicos [PDF]

, 2000
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.As propriedades espectroscópicas dos corantes solvatocrômicos têm sido estudados extensivamente nos últimos anos, devido às suas inúmeras aplicações
Cavalli, Viviane
core  

Determination of the dissociation constants of some macrolide antibiotics in methanol-water binary mixtures by UV-spectroscopy and correlations with the kamlet and taft solvatochromic parameters

, 2012
The dissociation constants of six common human and veterinary antibiotics, namely, erythromycin, roxithromycin, tilmicosin, oleandomycin, josamycin, and spiramycin in 15 %, 25 %, 40 % and 50 % (v/v) methanol-water solvent mixtures were determined by UV ...
Altun Y., Şanlı, Senem, Alsancak G.
core   +2 more sources

Studying of physicochemical properties of newly synthesized uracil derivatives

Zaštita Materijala, 2015
Uracil derivatives are potentially biologically active compounds, so the investigation of their physical and chemical properties is very important for their further application.
Jadranka A. Tot, Aleksandar D. Marinković   +1 more
doaj   +1 more source

Analysis of Relationship Between Some Disazo Dyes Derived from 2,4-Dihydroxyquinoline and Its Anticancer and DNA Binding Properties by Density Functional Theory

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2021
It was studied some physical and chemical properties of 2,4-dihydroxy quinoline derivative diazo dyes by theoretical methods. Six different solvents were used to determine the solvatochromic behavior and absorption of the compounds, and the experimental ...
Nesrin Şener, Muhammet Çavuş
doaj   +1 more source

The kinetics of the reactions of 2-substituted nicotinic acids with diazodiphenylmethane in various alcohols [PDF]

Journal of the Serbian Chemical Society, 2003
The rate constants of 2-substituted nicotinic acids in reaction with diazodiphenylmethane (DDM) in eight alcohols at 30 ºC have been determined. In order to explain the obtained results through solvent effects, the second order reaction rate constants (k)
Drmanić Saša Ž., Jovanović Bratislav Ž., Marinković Aleksandar D., Mišić-Vuković Milica M.   +3 more
doaj   +3 more sources

Solvatochromism Effect of Different Solvents on UV-Vis Spectra of Flouresceine and its Derivatives [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2008
The solvatochromism of fluoresceine and its derivatives was studied in solvents of different Hydrogen Bond Donor (HBD), Hydrogen Bond Acceptor (HBA), Donor Number (DN) and Acceptor Number (AN) by their UV-Vis spectra.
Mohammad Reza Hadjmohammadi, Mohammad Javad Chaichi, Maryam Yousefpour   +2 more
doaj  

Synthesis, solvatochromism, electronic structure and nonlinear optic properties of quinolin-8-yl 2-hydroxybenzoate

Macedonian Journal of Chemistry and Chemical Engineering, 2018
Quinolin-8-yl-2-hydroxybenzoate (abbreviated as QHB) was synthesized and investigated both experimentally and theoretically to obtain its physical and electronic properties.
Ayşegül Gümüş, Yadigar Gülseven Sıdır, İsa Sıdır, Selçuk Gümüş   +3 more
doaj   +1 more source

Data_Sheet_1_Establishing Predictive Models for Solvatochromic Parameters of Ionic Liquids.PDF

, 2019
The use of ionic liquids (ILs) in applications ranging from catalysis to reaction media in organic synthesis has been successfully demonstrated in several cases.
Kallidanthiyil Chellappan Lethesh (1350189), Vishwesh Venkatraman (1773208)   +1 more
core   +1 more source