Bimanes. 9. Solvent and substituent effects on intramolecular charge-transfer quenching of the fluorescence of syn-1,5-diazabicyclo[3.3.0]octadienediones (syn-9,10-dioxabimanes)

1982 ◽  
Vol 86 (8) ◽  
pp. 1270-1277 ◽  
Author(s):  
Edward M. Kosower ◽  
Hannah Kanety ◽  
Hanna Dodiuk ◽  
Joshua Hermolin
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Substituent Effects

Substituent Effects on the Intramolecular Charge Transfer and Fluorescence of Bimetallic Platinum Complexes

2011 ◽  
Vol 115 (24) ◽  
pp. 6390-6393 ◽  
Author(s):  
Guang-Jiu Zhao ◽  
Fabiao Yu ◽  
Ming-Xing Zhang ◽  
Brian H. Northrop ◽  
Haibo Yang ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Substituent Effects ◽  
Platinum Complexes

scholarly journals Experimental and theoretical study on solvent and substituent effects on the intramolecular charge transfer in 3-[(4-substituted)phenylamino]isobenzofuran-1(3H)-ones

2018 ◽  
Vol 83 (2) ◽  
pp. 139-155 ◽  
Author(s):  
Nevena Prlainovic ◽  
Milica Rancic ◽  
Ivana Stojiljkovic ◽  
Jasmina Nikolic ◽  
Sasa Drmanic ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Charge Transfer ◽  
Density Functional ◽  
Energy Gap ◽  
Intramolecular Charge Transfer ◽  
Substituent Effects ◽  
Dft Method ◽  
Electronic Excitations ◽  
Functional Theory ◽  
Td Dft

The substituent and solvent effects on solvatochromism in 3-[(4-substituted) phenylamino]isobenzofuran-1(3H)-ones were studied using experimental and theoretical methodologies. The effect of specific and non-specific solvent?solute interactions on the shifts of UV?Vis absorption maxima were evaluated using the Kamlet?Taft and Catal?n solvent parameter sets. The experimental results were studied by density functional theory (DT) and time-dependent density functional theory (TD-DFT). The HOMO/LUMO energies (EHOMO/ELUMO) and energy gap (Egap) values, as well as the mechanism of electronic excitations and the changes in the electron density distribution in both ground and excited states of the investigated molecules were studied by calculation in the gas phase. The electronic excitations were calculated by the TD-DFT method in the solvent methanol. It was found that both substituents and solvents influence the degree of ?-electron conjugation of the synthesized molecules and affect the intramolecular charge transfer character.

Analysis of solvent and substituent effects on uv and visible spectra of N-(α-methylarylidene)-p-(N′,N′-dimethylamino)-anilines

1985 ◽  
Vol 63 (11) ◽  
pp. 3256-3257
Author(s):  
Piotr Milart ◽  
Tadeusz M. Krygowski
Keyword(s):  
Charge Transfer ◽  
Solvent Effect ◽  
Substituent Effect ◽  
Intramolecular Charge Transfer ◽  
Substituent Effects ◽  
Wave Band ◽  
Hammett Equation ◽  
Long Wave ◽  
Visible Spectra

Substituent effect on the long wave band in uv/vis spectra of p-substituted N-(α-methylarylidene)-p-(N′,N′-dimethylamino)-anilines (X = CH3O, CH3, H, Cl, and NO2) measured in eight solvents follows well the Hammett equation. Solvent effect on this band depends well on ET only for Cl- and NO2-substituted species. Both these findings support the conclusion that the long-wave band is in fact intramolecular charge transfer form the basicity center [Formula: see text] towards substituents.

Dynamic adjustment of emission from both singlets and triplets: the role of excited state conformation relaxation and charge transfer in phenothiazine derivates

2021 ◽  
Author(s):  
Weidong Qiu ◽  
Xinyi Cai ◽  
Mengke Li ◽  
Liangying Wang ◽  
Yanmei He ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Dynamic Adjustment ◽  
Twisted Intramolecular Charge Transfer

Dynamic adjustment of emission behaviours by controlling the extent of twisted intramolecular charge transfer character in excited state.

Steric Effects on Intramolecular Charge Transfer Fluorescence of Benzo[b]thiophene-1,1-dioxide Bridged Macrocages

2021 ◽  
Author(s):  
Keita Nobuhara ◽  
Yusuke Inagaki ◽  
Wataru Setaka
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Fluorescence Properties ◽  
Steric Effects ◽  
Sensor Molecules

Intramolecular charge transfer (ICT) fluorescence has been widely investigated and exploited in sensor molecules. However, steric effects on the ICT fluorescence properties have rarely been reported so far, although research...

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