Photoinduced Charge Transfer State Probes the Dynamic Water Interaction with Metal–Organic Nanocages

2015 ◽  
Vol 119 (36) ◽  
pp. 21234-21242 ◽  
Author(s):  
Ankita Das ◽  
Ajay Jha ◽  
Rahul Gera ◽  
Jyotishman Dasgupta
Keyword(s):  
Charge Transfer ◽  
Charge Transfer State ◽  
Photoinduced Charge Transfer ◽  
Water Interaction ◽  
Metal Organic ◽  
Photoinduced Charge ◽  
Transfer State

The role of photoinduced charge transfer for photocatalysis, photoelectrocatalysis and luminescence sensing in metal–organic frameworks

2020 ◽  
Vol 49 (37) ◽  
pp. 12892-12917
Author(s):  
Xinlin Li ◽  
Sreehari Surendran Rajasree ◽  
Jierui Yu ◽  
Pravas Deria
Keyword(s):  
Charge Transfer ◽  
Recent Progress ◽  
State Of The Art ◽  
Metal Organic Frameworks ◽  
Photoinduced Charge Transfer ◽  
Characterization Methods ◽  
Luminescent Sensors ◽  
Metal Organic ◽  
Photoinduced Charge

Understanding PCT taking place within MOFs is crucial for designing porous photo/electrocatalysts and luminescent sensors. Unique features of PCT in MOFs and recent progress along with state-of-the-art characterization methods are discussed in the context of its applications.

scholarly journals Unravelling a long-lived ligand-to-metal cluster charge transfer state in Ce–TCPP metal organic frameworks

2020 ◽  
Vol 56 (90) ◽  
pp. 13971-13974
Author(s):  
Sizhuo Yang ◽  
Wenhui Hu ◽  
James Nyakuchena ◽  
Christian Fiankor ◽  
Cunming Liu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Separation ◽  
Transient Absorption ◽  
Metal Cluster ◽  
Metal Organic Frameworks ◽  
Charge Transfer State ◽  
X Ray ◽  
Metal Organic ◽  
Transfer State

We report the ultrafast charge separation dynamics in porphyrin-based Ce–TCPP MOFs using optical and X-ray transient absorption (XTA) spectroscopy.

Long-lived photoinduced charge transfer state of synthetically affable porphyrin-fullerene dyads

2003 ◽  
Vol 07 (10) ◽  
pp. 651-666 ◽  
Author(s):  
Franz-Peter Montforts ◽  
Ivan Vlassiouk ◽  
Sergei Smirnov ◽  
Michael Wedel
Keyword(s):  
Charge Transfer ◽  
Charge Separation ◽  
Photophysical Properties ◽  
Solvent Polarity ◽  
Charge Transfer State ◽  
Displacement Current ◽  
Intramolecular Electron Transfer ◽  
High Yields ◽  
Photoinduced Charge ◽  
Transfer State

Bislactone linked porphyrin-fullerene dyads show promising photophysical properties for mimicking photosynthesis. Optical and transient displacement current investigations of the dyads demonstrate efficient intramolecular electron transfer from porphyrin to fullerene with the lifetime of the charge transfer state on the order of a few nanoseconds in low polarity solvents. Solvent polarity effect on the yield of charge separation and conformations in the charge transfer state are investigated in detail. The facile synthesis could readily be applied to constructing extended compounds with high yields of photoinduced charge separation.

Dynamics of photoinduced charge-transfer in dimethylamino-substituted triphenylphosphines

1996 ◽  
Vol 93 ◽  
pp. 1697-1713 ◽  
Author(s):  
P Changenet ◽  
P Plaza ◽  
MM Martin ◽  
YH Meyer ◽  
W Rettig
Keyword(s):  
Charge Transfer ◽  
Photoinduced Charge Transfer ◽  
Photoinduced Charge

Photoinduced Charge Transfer Dynamics in Carotenoid-Porphyrin-C60 Triad via the Linearized Semiclassical Nonequilibrium Fermi's Golden Rule

2020 ◽  
Author(s):  
Zhengqing Tong ◽  
Margaret S. Cheung ◽  
Barry D. Dunietz ◽  
Eitan Geva ◽  
Xiang Sun
Keyword(s):  
Charge Transfer ◽  
Golden Rule ◽  
Time Dependent ◽  
Rate Coefficients ◽  
Initial State ◽  
Photoinduced Charge Transfer ◽  
Transfer Rates ◽  
Fermi's Golden Rule ◽  
Photoinduced Charge ◽  
Fermi’S Golden Rule

The nonequilibrium Fermi’s golden rule (NE-FGR) describes the time-dependent rate coefficient for electronic transitions, when the nuclear degrees of freedom start out in a <i>nonequilibrium</i> state. In this letter, the linearized semiclassical (LSC) approximation of the NE-FGR is used to calculate the photoinduced charge transfer rates in the carotenoid-porphyrin-C<sub>60</sub> molecular triad dissolved in explicit tetrahydrofuran. The initial nonequilibrium state corresponds to impulsive photoexcitation from the equilibrated ground-state to the ππ* state, and the porphyrin-to-C<sub>60</sub> and the carotenoid-to-C<sub>60</sub> charge transfer rates are calculated. Our results show that accounting for the nonequilibrium nature of the initial state significantly enhances the transition rate of the porphyrin-to-C<sub>60</sub> CT process. We also derive the instantaneous Marcus theory (IMT) from LSC NE-FGR, which casts the CT rate coefficients in terms of a Marcus-like expression, with explicitly time-dependent reorganization energy and reaction free energy. IMT is found to reproduce the CT rates in the system under consideration remarkably well.

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