Intramolecular Charge Transfer and Solvation Dynamics of Thiolate-Protected Au20(SR)16 Clusters Studied by Ultrafast Measurement

2013 ◽  
Vol 117 (40) ◽  
pp. 10294-10303 ◽  
Author(s):  
Meng Zhou ◽  
Silvije Vdović ◽  
Saran Long ◽  
Manzhou Zhu ◽  
Linyin Yan ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Solvation Dynamics ◽  
Ultrafast Measurement

Intramolecular charge transfer and solvation dynamics of Nile Red in the nanocavity of cyclodextrins

2004 ◽  
Vol 388 (1-3) ◽  
pp. 150-157 ◽  
Author(s):  
Partha Hazra ◽  
Debdeep Chakrabarty ◽  
Anjan Chakraborty ◽  
Nilmoni Sarkar
Keyword(s):  
Charge Transfer ◽  
Intramolecular Charge Transfer ◽  
Nile Red ◽  
Solvation Dynamics

scholarly journals Intramolecular Charge Transfer of 1-Aminoanthraquinone and Ultrafast Solvation Dynamics of Dimethylsulfoxide

2021 ◽  
Vol 22 (21) ◽  
pp. 11926
Author(s):  
Kooknam Jeon ◽  
Myungsam Jen ◽  
Sebok Lee ◽  
Taehyung Jang ◽  
Yoonsoo Pang
Keyword(s):  
Charge Transfer ◽  
Structural Changes ◽  
Intramolecular Charge Transfer ◽  
Plane Deformation ◽  
Low Frequency ◽  
Solvation Dynamics ◽  
Strongly Coupled ◽  
Vibrational Bands ◽  
Anharmonic Coupling ◽  
Deformation Modes

The intramolecular charge transfer (ICT) of 1-aminoanthraquinone (AAQ) in the excited state strongly depends on its solvent properties, and the twisted geometry of its amino group has been recommended for the twisted ICT (TICT) state by recent theoretical works. We report the transient Raman spectra of AAQ in a dimethylsulfoxide (DMSO) solution by femtosecond stimulated Raman spectroscopy to provide clear experimental evidence for the TICT state of AAQ. The ultrafast (~110 fs) TICT dynamics of AAQ were observed from the major vibrational modes of AAQ including the νC-N + δCH and νC=O modes. The coherent oscillations in the vibrational bands of AAQ strongly coupled to the nuclear coordinate for the TICT process have been observed, which showed its anharmonic coupling to the low frequency out of the plane deformation modes. The vibrational mode of solvent DMSO, νS=O showed a decrease in intensity, especially in the hydrogen-bonded species of DMSO, which clearly shows that the solvation dynamics of DMSO, including hydrogen bonding, are crucial to understanding the reaction dynamics of AAQ with the ultrafast structural changes accompanying the TICT.

Intramolecular charge transfer and solvation dynamics of push–pull dyes with different π-conjugated linkers

2019 ◽  
Vol 21 (31) ◽  
pp. 17323-17331 ◽  
Author(s):  
Xinmiao Niu ◽  
Prabhat Gautam ◽  
Zhuoran Kuang ◽  
Craig P. Yu ◽  
Yuanyuan Guo ◽  
...  
Keyword(s):  
Excited State ◽  
Charge Transfer ◽  
Steady State ◽  
Transient Absorption ◽  
Intramolecular Charge Transfer ◽  
Theoretical Calculations ◽  
Solvation Dynamics ◽  
Excited State Dynamics ◽  
Ultrafast Transient Absorption

The solvation-dependent excited state dynamics of two push–pull fluorophores with donor–π–acceptor (D–π–A) structures were investigated using steady-state and ultrafast transient absorption (TA) spectroscopy, backed by theoretical calculations.

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.

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