Tuning the excited-state deactivation pathways of dinuclear ruthenium(ii) 2,2′-bipyridine complexes through bridging ligand design

2020 ◽  
Vol 49 (24) ◽  
pp. 8096-8106 ◽  
Author(s):  
Simon Cerfontaine ◽  
Ludovic Troian-Gautier ◽  
Sara A. M. Wehlin ◽  
Frédérique Loiseau ◽  
Emilie Cauët ◽  
...  
Keyword(s):  
Excited State ◽  
Steady State ◽  
Variable Temperature ◽  
Ligand Design ◽  
Binuclear Complexes ◽  
Time Resolved ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium ◽  
Photophysical Study ◽  
Time Resolved Photoluminescence

A detailed photophysical study of binuclear complexes was performed using steady-state and time-resolved photoluminescence measurements at variable temperature. The results were compared with the prototypical [Ru(bpy)3]2+.

Comparative photophysical study of Pt(II) complex-nanoclay hybrid materials as dry powders and hydrogels

2020 ◽  
Vol 75 (11) ◽  
pp. 991-996
Author(s):  
Sathish Chatnahalli Gangadharappa ◽  
Cristian A. Strassert
Keyword(s):  
Excited State ◽  
Coordination Compounds ◽  
Molecular Level ◽  
Structural Features ◽  
Time Resolved ◽  
Dry Powders ◽  
Water Dispersibility ◽  
Photophysical Study ◽  
Time Resolved Photoluminescence

AbstractThe excited state properties of Pt(II) complexes are strongly influenced by their microenvironment and by intermolecular interactions. In this work, we investigated the photoluminescence of six Pt(II) complexes adsorbed onto a layered nanoclay, namely Laponite® (LAP). The excellent water dispersibility and gel-forming nature of the LAP was exploited to achieve a class of versatile materials. In particular, we report on the comparative photophysics of the dry powders and the hydrogels. Steady-state and time-resolved photoluminescence spectroscopy were used to assess the role of structural features at molecular level on the interaction between the nanodiscs, which in turn affects the intermolecular coupling of the coordination compounds in the excited state.

scholarly journals Ground- and excited-state characteristics in photovoltaic polymer N2200

RSC Advances ◽  
2021 ◽  
Author(s):  
Guanzhao Wen ◽  
Xianshao Zou ◽  
Rong Hu ◽  
Jun Peng ◽  
Zhifeng Chen ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Excited State ◽  
Steady State ◽  
Excited States ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Time Dependent ◽  
Functional Theory ◽  
Time Resolved ◽  
Dependent Density

Ground- and excited-states properties of N2200 have been studied by steady-state and time-resolved spectroscopies as well as time-dependent density functional theory calculations.

Steady state and time-resolved photoluminescence properties of alternating polyfluorene copolymers

2003 ◽  
Vol 135-136 ◽  
pp. 387-388 ◽  
Author(s):  
A. Charas ◽  
J. Morgado ◽  
L. Alcácer ◽  
J.M.G. Martinho ◽  
F. Cacialli
Keyword(s):  
Steady State ◽  
Photoluminescence Properties ◽  
Time Resolved ◽  
Time Resolved Photoluminescence

scholarly journals Steric effects in light-induced solvent proton abstraction

2020 ◽  
Vol 22 (35) ◽  
pp. 19613-19622 ◽  
Author(s):  
Jurick Lahiri ◽  
Mehdi Moemeni ◽  
Ilias Magoulas ◽  
Stephen H. Yuwono ◽  
Jessica Kline ◽  
...  
Keyword(s):  
Excited State ◽  
Steady State ◽  
Transfer Reactions ◽  
Steric Effects ◽  
Structural Factors ◽  
Time Resolved ◽  
Proton Abstraction ◽  
Excited State Proton Transfer ◽  
Proton Transfer Reactions ◽  
Solvent Proton

The significance of solvent structural factors in the excited-state proton transfer reactions of the super photobase FR0-SB with alcohols is examined using steady-state and time-resolved spectroscopy and quantum chemistry computations.

Steady state and time resolved photoluminescence properties of CuInS2/ZnS quantum dots in solutions and in solid films

2015 ◽  
Vol 167 ◽  
pp. 333-338 ◽  
Author(s):  
Nikolaos Droseros ◽  
Kostas Seintis ◽  
Mihalis Fakis ◽  
Spiros Gardelis ◽  
Androula G. Nassiopoulou
Keyword(s):  
Quantum Dots ◽  
Steady State ◽  
Photoluminescence Properties ◽  
Time Resolved ◽  
Solid Films ◽  
Time Resolved Photoluminescence

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.

Excited-state intramolecular proton transfer and conformational relaxation in 4′-N,N-dimethylamino-3-hydroxyflavone doped in acetonitrile crystals

2016 ◽  
Vol 18 (41) ◽  
pp. 28564-28575 ◽  
Author(s):  
Kazuki Furukawa ◽  
Norifumi Yamamoto ◽  
Kazuyuki Hino ◽  
Hiroshi Sekiya
Keyword(s):  
Excited State ◽  
Steady State ◽  
Fluorescence Spectroscopy ◽  
Proton Transfer ◽  
Intramolecular Proton Transfer ◽  
Time Resolved Fluorescence ◽  
Time Resolved ◽  
Conformational Relaxation ◽  
Excited State Dynamics

Excited-state dynamics of 4′-N,N-dimethylamino-3-hydroxyflavone doped in acetonitrile crystals has been investigated by using steady-state and time-resolved fluorescence spectroscopy.

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