Insights into the effect of donor ability on photophysical properties of dihydroindeno[2,1-c]fluorene-based imide derivatives

2018 ◽  
Vol 20 (11) ◽  
pp. 7514-7522 ◽  
Author(s):  
Guiying He ◽  
Li-Li Zhou ◽  
Hongwei Song ◽  
Zhuoran Kuang ◽  
Xian Wang ◽  
...  
Keyword(s):  
Steady State ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Photophysical Properties ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Donor Ability

The photophysical properties of dihydroindeno[2,1-c]fluorene-based imide (DHIFI) derivatives were investigated by steady-state and time-resolved spectroscopy as well as quantum chemical calculations.

STEADY STATE AND TIME RESOLVED SPECTROSCOPIC STUDY OF CONFINED DYE INSIDE γ-CD IN PRESENCE OF Au NANOPARTICLES

2011 ◽  
Vol 10 (04n05) ◽  
pp. 867-871
Author(s):  
TAPASI SEN ◽  
AMITAVA PATRA
Keyword(s):  
Steady State ◽  
Spectroscopic Study ◽  
Au Nanoparticles ◽  
Light Harvesting ◽  
Photophysical Properties ◽  
Photoluminescence Quenching ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Potential Applications

The photophysical properties of the confined dye inside the γ-CD in presence of Au nanoparticles have been studied by steady state and time resolved spectroscopy. It is found that the photoluminescence quenching of C480 dye increases from 26% to 49% due to confinement of dye inside γ-CD. The designing of such new optical based materials having coumarin 480 dye inside the γ-CD in presence of Au nanoparticles may have potential applications for light harvesting system.

Electronic energy transfer in dinuclear metal complexes containing meta-substituted phenylene units

2005 ◽  
Vol 77 (6) ◽  
pp. 1035-1050 ◽  
Author(s):  
A. D’Aléo ◽  
S. Welter ◽  
E. Cecchetto ◽  
L. De Cola
Keyword(s):  
Energy Transfer ◽  
Steady State ◽  
Metal Complexes ◽  
Photophysical Properties ◽  
Electronic Energy ◽  
Dinuclear Complexes ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Electronic Energy Transfer ◽  
Dinuclear Metal Complexes

The synthesis and photophysical properties of heterometallic dinuclear complexes based on ruthenium and osmium trisbipyridine units, Ru-mPh3-Os and Ru-mPh5-Os, in which the metal complexes are linked via an oligophenylene bridge centrally connected in the meta position, are described. Electronic energy transfer from the excited ruthenium-based component (donor) to the osmium moiety (acceptor) has been investigated using steady-state and time-resolved spectroscopy. The results obtained for the meta-substituted compounds are compared with the analogous systems in which the phenylene spacers are substituted in the para position. The mechanism of energy transfer is discussed.

scholarly journals Photophysical properties and fluorosolvatochromism of D–π–A thiophene based derivatives

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43459-43471
Author(s):  
Hussain A. Z. Sabek ◽  
Ahmed M. M. Alazaly ◽  
Dina Salah ◽  
Hesham S. Abdel-Samad ◽  
Mohamed A. Ismail ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Fluorescence Emission ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Solvation Models

Solvation-dependent photophysical properties of two push–pull thiophene-based compounds with donor–π–acceptor (D–π–A) structures were investigated using absorption, fluorescence emission and time resolved spectroscopy, and supported by different solvation models.

Synthesis and photophysical properties of extended π conjugated naphthalimides

2017 ◽  
Vol 16 (4) ◽  
pp. 539-546 ◽  
Author(s):  
C. Rémy ◽  
C. Allain ◽  
I. Leray
Keyword(s):  
Charge Transfer ◽  
Dft Calculations ◽  
Photophysical Properties ◽  
Photoinduced Charge Transfer ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Td Dft ◽  
Photoinduced Charge

A series of π conjugated naphthalimide derivatives were prepared. Compounds display efficient photoinduced charge transfer in solution which was rationalized by time-resolved spectroscopy and modelled by TD-DFT calculations.

Steady-state and time-resolved spectroscopy of porous silicon

1996 ◽  
Vol 70 (1-6) ◽  
pp. 364-376 ◽  
Author(s):  
S.V. Gaponenko ◽  
E.P. Petrov ◽  
U. Woggon ◽  
O. Wind ◽  
C. Klingshirn ◽  
...  
Keyword(s):  
Steady State ◽  
Porous Silicon ◽  
Time Resolved ◽  
Time Resolved Spectroscopy

Spectral and Photoprototropic Characteristics of 4-Aminobiphenyl in β-Cyclodextrin

2004 ◽  
Vol 69 (4) ◽  
pp. 748-758 ◽  
Author(s):  
Israel V. Muthu Vijayan Enoch ◽  
Meenakshisundaram Swaminathan
Keyword(s):  
Excited State ◽  
Steady State ◽  
Fluorescence Spectroscopy ◽  
Inclusion Complex ◽  
Ground State ◽  
Time Resolved Fluorescence ◽  
Neutral Form ◽  
Time Resolved ◽  
Time Resolved Spectroscopy

The photophysical and photoprototropic behaviour of 4-aminobiphenyl (4ABP) in aqueous β-cyclodextrin (β-CDx) solution has been investigated using steady-state and time-resolved fluorescence spectroscopy. Fluorescence of the neutral form of 4ABP is enhanced due to the formation of a 1:1 complex with β-CDx. The formation of this complex has been confirmed by time-resolved spectroscopy. In the presence of β-CDx, no change was observed in the ground state pKa value but the excited state pKa value changed. Based on its photophysical and photoprototropic characteristics in β-CDx, the structure of the 1:1 inclusion complex is proposed.

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