Spectroscopic determination of solvation shell composition of fluorenone and 4-hydroxyfluorenone in binary solvent mixtures.

@article{Jzefowicz2008SpectroscopicDO,
  title={Spectroscopic determination of solvation shell composition of fluorenone and 4-hydroxyfluorenone in binary solvent mixtures.},
  author={Marek J{\'o}zefowicz},
  journal={Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy},
  year={2008},
  volume={71 2},
  pages={
          537-42
        }
}
  • M. Józefowicz
  • Published 15 November 2008
  • Chemistry, Medicine
  • Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
Preferential solvation of fluorenone (9Fl) and 4-hydroxyfluorenone (4HOFl) in binary solvent mixtures (cyclohexane-tetrahydrofuran (CH-THF) and cyclohexane-ethanol (CH-EtOH)) has been studied using steady-state spectroscopic measurements. The solvation of the fluorenones, both in the ground and in the excited states, exhibits a non-linear solvatochromic shifts as a function of polar component in the binary solvent mixtures. The results of spectroscopic measurements were used to calculate… Expand
10 Citations
The influence of hydrogen bonds and preferential solvation on spectroscopic properties of methyl p-dimethylaminobenzoate and its ortho derivative in binary solvent mixture
Abstract Using the steady-state spectroscopic technique, we have studied the spectroscopic properties of methyl p-dimethylaminobenzoate and its ortho derivative in binary mixture where one ofExpand
Solvatochromism and excited-state characteristics of fluorenone-1-carboxylic acid
Abstract The solvatochromism of the fluorenone derivative 9-fluorenone-1-carboxylic acid (9F1C) was examined in binary cyclohexane-tetrahydrofuran mixtures, along with a theoretical investigation ofExpand
Competition between solvent quenching and indole quenching of 9-fluorenone: a spectroscopic and computational study.
TLDR
It was determined that polar protic solvents such as methanol and ethanol significantly quenched the fluorescence of 9-fluorenone but various indoles reversed the solvent quenching. Expand
Molecular-Based Theory for Electron-Transfer Reorganization Energy in Solvent Mixtures.
TLDR
A molecular-based dipolar self-consistent-field theory for charge solvation in liquid mixtures under equilibrium and nonequilibrium conditions is developed and applied to compute the solvent reorganization energy of electron-transfer reactions. Expand
Orientational and vibrational relaxation dynamics of perylene in the cyclohexane-ethanol binary solvent system.
TLDR
Steady-stateSpectroscopic data show that there is a discontinuous dependence of the spectroscopic origin on binary solvent system composition for perylene, and rotational diffusion and vibrational population relaxation time constants show a clear discontinuity between 5% and 7.5% ethanol in cyclohexane, suggesting a discontinuity change on molecular scale rearrangement in the chromophore local environment. Expand
Blue fluorescent deoxycytidine analogues: convergent synthesis, solid-state and electronic structure, and solvatochromism.
We report the synthesis and photospectroscopic characterisation of intrinsically fluorescent triazole-appended cytidines. Fluorescence was found to be highly dependent on solvent conditions. X-RayExpand
Determination of ground and excited state dipole moments of 4,5'-diamino[1,1':3',1''-terphenyl]-4',6'-dicarbonitrile using solvatochromic method and quantum-chemical calculations.
TLDR
Austin model 1 (AM1) semiempirical molecular calculations were carried out to estimate the ground state dipole moments of 4,5'-diamino and the influence of polarizability on the determined change of the dipole moment was discussed. Expand
Interfacial Behavior of Fluorescent Dyes
Our macroscopic world and the world of atoms and small molecules are separated by length scales differing by seven or more orders of magnitude. Describing the latter world with fluorescence probes inExpand
Dipolar Liquids and Their Mixtures: Equilibrium and Nonequilibrium Properties with Field-Theoretic Approaches
Liquid is a state of matter that is intermediate between the gas state and the solid state. Though it is an ordinary state of matter, the application of statistical mechanics for understanding itsExpand

References

SHOWING 1-10 OF 16 REFERENCES
Determination of reorganization energy of fluorenone and 4-hydroxyfluorenone in neat and binary solvent mixtures.
  • M. Józefowicz
  • Chemistry, Medicine
  • Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
  • 2007
Steady-state absorption and fluorescence measurements of fluorenone and 4-hydroxyfluorenone in neat and binary solvent mixtures were used to explore the reorganization energy in liquid system. TheExpand
Preferential solvation of fluorenone and 4-hydroxyfluorenone in binary solvent mixtures
Abstract Preferential solvation of fluorenone and 4-hydroxyfluorenone in binary solvent mixtures has been studied using steady-state spectroscopic measurements. This study concerns theExpand
Solvent effects on electronic transitions of fluorenone and 4-hydroxyfluorenone
Abstract The solvation characteristics of the ground and excited states of fluorenone and 4-hydroxyfluorenone were investigated in neat and binary solvent mixtures. The spectral shifts are correlatedExpand
Solvation Statics and Dynamics of Coumarin 153 in Dioxane−Water Solvent Mixtures
We studied the solvation statics and dynamics of coumarin 153 dye in a dioxane-water binary solvent mixture. The solvation energy of coumarin 153, both in the ground and excited electronic states inExpand
Photophysical Properties of Intramolecular Charge-Transfer Excited Singlet State of Aminofluorenone Derivatives
Photophysical properties of fluorenone and 12 aminofluorenone derivatives were investigated systematically by fluorescence quantum yield and picosecond lifetime measurements in cyclohexane, benzene,Expand
Substituent, solvent, and temperature effects on radiative and nonradiative processes of singlet excited fluorenone derivatives
Fluorescence lifetimes, fluorescence quantum yields, and triplet yields have been measured for 2-fluorofluorenone and 2-methoxyfluorenone in different solvents having a widerange of polarities. TheExpand
Selective nonspecific solvation under dielectric saturation and fluorescence spectra of dye solutions in binary solvents
TLDR
The measured fluorescence spectral shifts determined by substituting one nonpolar solvent molecula with a polar one in the proximity of the dye molecule agree quantitatively with the forecasts of the previously proposed semiempirical theory which describes this nonlinear solvation phenomenon. Expand
Effects of molecular structure and hydrogen bonding on the radiationless deactivation of singlet excited fluorenone derivatives
Substituent effects on intramolecular radiationless deactivation and hydrogen-bonding-induced quenching have been examined for various fluorenone derivatives. In toluene, triplet formation is theExpand
Hydrogen bonding and dielectric effects in solvatochromic shifts
When a dipolar molecule is dissolved in a mixture of two solvents N and P of different static relative permittivity, the solvent shell becomes enriched in the more polar solvent (P). This effect ofExpand
Study of the preferential solvation of some betaine dyes in binary solvent mixtures.
  • N. Ghoneim
  • Chemistry, Medicine
  • Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
  • 2001
TLDR
The preferential solvation in mixed binary solvents has been studied by monitoring the charge transfer band of some betaine dyes and it was shown that in the cases of dichloromethane/methanol, hydrogen bonding precedes dielectric enrichment whereas in the case of acetonitrile/water the inverse is true. Expand
...
1
2
...