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Now showing items 11-20 of 23
Solvatochromic fluorescence of 4-alkoxybenzoic acid liquid crystals: Ground and excited state dipole moments of monomer and dimer structures determined by solvatochromic shift methods
(Elsevıer, 2015)
The absorption and fluorescence spectra of 4-ethoxybenzoic acid (4EOBA), 4-propoxybenzoic acid (4POBA) and 4-butoxybenzoic acid (4BOBA) liquid crystals have been recorded and evaluated comprehensively in a series of organic ...
Solvatochromism and electronic structure of some symmetric Schiff base derivatives
(Elsevıer, 2015)
In this present work, we have investigated electronic absorption spectra of three symmetric Schiff bases in fourteen spectroscopic grade solvents which have different polarities. The electronic transitions have been evaluated ...
Estimation of ground and excited state dipole moments of Oil Red O by solvatochromic shift methods
(Pergamon-Elsevıer Scıence Ltd, 2015)
Absorption and fluorescence spectra of Oil Red O (abbreviated as ORO) are recorded in various solvents with different polarity in the range of 250-900 nm, at room temperature. The solvatochromic shift methods have been ...
Solvatochromic behavior and electronic structure of some symmetric 2-aminophenol Schiff base derivatives
(Elsevıer Scıence Bv, 2014)
The solvatochromic behavior and electronic structure of four symmetric 2-aininophenol Schiff base derivatives were investigated by using electronic absorption spectra in fourteen different spectroscopic grade solvents. The ...
Acidity constant determination of novel drug precursor benzothiazolon derivatives including acyl and piperazine moieties
(Pergamon-Elsevıer Scıence Ltd, 2013)
In this study, protonation and deprotonation behaviors of eight new drug precursor benzothiazolon derivatives in all of acidic and basic scale (super acidic, pH, super basic regions) are analyzed by using UV-visible ...
Structure-activity relationships for novel drug precursor N-substituted-6-acylbenzothiazolon derivatives: A theoretical approach
(Elsevıer, 2013)
In this study, the twelve new modeled N-substituted-6-acylbenzothiazolon derivatives having analgesic analog structure have been investigated by quantum chemical methods using a lot of electronic parameters and structure-activity ...
Solvent effect on the absorption and fluorescence spectra of 7-acetoxy-6-(2,3-dibromopropyl)-4,8-dimethylcoumarin: Determination of ground and excited state dipole moments
(Pergamon-Elsevıer Scıence Ltd, 2013)
The ground state (mu(g)) and excited state (mu(e)) dipole moments of 7-acetoxy-6-(2,3-dibromopropyl)-4,8-dimethylcoumarin (abbreviated as 7ADDC) are estimated from solvatochromic shifts of absorption and fluorescence spectra ...
A study on solvatochromism of some monoazo dye derivatives
(Elsevıer Scıence Bv, 2013)
The UV-vis and fluorescence spectra of four monoazo dye derivatives were investigated in the solvents with different polarities. Characterization of UV-vis electronic bands is specified by calculating charge transfer energy ...
A Theoretical Study on Electronic Structure and Structure-Activity Properties of Novel Drug Precursor 6-Acylbenzothiazolon Derivatives
(Wıley-Blackwell, 2011)
In this work, electronic properties and structure-activity relationship (SAR) parameters of 20 novel drug precursor 6-acylbenzothiazolon derivatives with analgesic activity have been investigated theoretically by performing ...
UV-spectral changes for some azo compounds in the presence of different solvents
(Elsevıer Scıence Bv, 2011)
The electronic absorption spectra of four azo dyes with different substituents (such as Cl, I, OH) are determined at room temperature in twenty-one solvents with different polarities. The electronic transitions of azo dyes ...