Triplet-triplet energy transfer in B800–850 light-harvesting complexes of photosynthetic bacteria and synthetic carotenoporphyrin molecules investigated by electron spin resonance

1987 ◽  
Vol 892 (3) ◽  
pp. 253-263 ◽  
Author(s):  
Harry A. Frank ◽  
Barry W. Chadwick ◽  
Jung Jin Oh ◽  
Devens Gust ◽  
Thomas A. Moore ◽  
...  

Carotenoids are usually considered to perform two major functions in photosynthesis. They serve as accessory light harvesting pigments, extending the range of wavelengths over which light can drive photosynthesis, and they act to protect the chlorophyllous pigments from the harmful photodestructive reaction which occurs in the presence of oxygen. Drawing upon recent work with photosynthetic bacteria, evidence is presented as to how the carotenoids are organized within both portions of the photosynthetic unit (the light harvesting antenna and the reaction centre) and how they discharge both their functions. The accessory pigment role is a singlet-singlet energy transfer from the carotenoid to the bacteriochlorophyll, while the protective role is a triplet-triplet energy transfer from the bacteriochlorophyll to the carotenoid.


1994 ◽  
Vol 42 (2) ◽  
pp. 157-166 ◽  
Author(s):  
Roya Farhoosh ◽  
Veeradej Chynwat ◽  
Ronald Gebhard ◽  
Johan Lugtenburg ◽  
Harry A. Frank

2007 ◽  
Vol 19 (15) ◽  
pp. 3673-3680 ◽  
Author(s):  
Tae-Hyuk Kwon ◽  
Myoung Ki Kim ◽  
Jongchul Kwon ◽  
Dae-Yup Shin ◽  
Su Jin Park ◽  
...  

2015 ◽  
Vol 6 (7) ◽  
pp. 3724-3737 ◽  
Author(s):  
Song Guo ◽  
Liang Xu ◽  
Kejing Xu ◽  
Jianzhang Zhao ◽  
Betül Küçüköz ◽  
...  

Hydrogen bonding-mediated supramolecular triplet photosensitizers with easily interchangeable visible light-harvesting Bodipy modules and the fullerene intersystem crossing module were devised.


2010 ◽  
Vol 1797 (8) ◽  
pp. 1465-1469 ◽  
Author(s):  
Andrew Gall ◽  
Egidijus Sogaila ◽  
Vidmantas Gulbinas ◽  
Oana Ilioaia ◽  
Bruno Robert ◽  
...  

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