Controlling electron transfer in condensed phase with bond-specific infrared excitation

2015 ◽  
Author(s):  
Milan Delor ◽  
Paul A. Scattergood ◽  
Igor V. Sazanovich ◽  
Theo Keane ◽  
Gregory M. Greetham ◽  
...  
2003 ◽  
pp. 391-398
Author(s):  
Eva Åkesson ◽  
Alexander N. Tarnovsky ◽  
Gabor Benkö ◽  
Arkady Yartsev ◽  
Villy Sundström

Science ◽  
2014 ◽  
Vol 346 (6216) ◽  
pp. 1492-1495 ◽  
Author(s):  
Milan Delor ◽  
Paul A. Scattergood ◽  
Igor V. Sazanovich ◽  
Anthony W. Parker ◽  
Gregory M. Greetham ◽  
...  

Electron transfer (ET) from donor to acceptor is often mediated by nuclear-electronic (vibronic) interactions in molecular bridges. Using an ultrafast electronic-vibrational-vibrational pulse-sequence, we demonstrate how the outcome of light-induced ET can be radically altered by mode-specific infrared (IR) excitation of vibrations that are coupled to the ET pathway. Picosecond narrow-band IR excitation of high-frequency bridge vibrations in an electronically excited covalent trans-acetylide platinum(II) donor-bridge-acceptor system in solution alters both the dynamics and the yields of competing ET pathways, completely switching a charge separation pathway off. These results offer a step toward quantum control of chemical reactivity by IR excitation.


2012 ◽  
Vol 85 (2) ◽  
Author(s):  
Kajal Dhole ◽  
Naresh K. Jena ◽  
Alok Samanta ◽  
Swapan K. Ghosh

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