Kinetics of solute excited-state formation in the pulse radiolysis of liquid alkanes. Comparison between theory and experiment

1980 ◽  
Vol 84 (20) ◽  
pp. 2539-2544 ◽  
Author(s):  
Myran C. Sauer ◽  
Charles D. Jonah
1979 ◽  
Vol 63 (3) ◽  
pp. 535-538 ◽  
Author(s):  
Charles D. Jonah ◽  
Myran C. Sauer ◽  
Ronald Cooper ◽  
Alexander D. Trifunac

1976 ◽  
Vol 64 (11) ◽  
pp. 4587-4591 ◽  
Author(s):  
Myran C. Sauer ◽  
William A. Mulac ◽  
Ronald Cooper ◽  
Franz Grieser

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Chunfan Yang ◽  
Qian Zhou ◽  
Zeqing Jiao ◽  
Hongmei Zhao ◽  
Chun-Hua Huang ◽  
...  

AbstractThe triplet metal to ligand charge transfer (3MLCT) luminescence of ruthenium (II) polypyridyl complexes offers attractive imaging properties, specifically towards the development of sensitive and structure-specific DNA probes. However, rapidly-deactivating dark state formation may compete with 3MLCT luminescence depending on different DNA structures. In this work, by combining femtosecond and nanosecond pump-probe spectroscopy, the 3MLCT relaxation dynamics of [Ru(phen)2(dppz)]2+ (phen = 1,10-phenanthroline, dppz = dipyridophenazine) in two iconic G-quadruplexes has been scrutinized. The binding modes of stacking of dppz ligand on the terminal G-quartet fully and partially are clearly identified based on the biexponential decay dynamics of the 3MLCT luminescence at 620 nm. Interestingly, the inhibited dark state channel in ds-DNA is open in G-quadruplex, featuring an ultrafast picosecond depopulation process from 3MLCT to a dark state. The dark state formation rates are found to be sensitive to the content of water molecules in local G-quadruplex structures, indicating different patterns of bound water. The unique excited state dynamics of [Ru(phen)2(dppz)]2+ in G-quadruplex is deciphered, providing mechanistic basis for the rational design of photoactive ruthenium metal complexes in biological applications.


1979 ◽  
Vol 67 (2-3) ◽  
pp. 218-222 ◽  
Author(s):  
A.J. Campillo ◽  
J.H. Clark ◽  
S.L. Shapiro ◽  
K.R. Winn ◽  
P.K. Woodbridge

2003 ◽  
Vol 369 (1-2) ◽  
pp. 80-89 ◽  
Author(s):  
Marcin Ziółek ◽  
Jacek Kubicki ◽  
Andrzej Maciejewski ◽  
Ryszard Naskrȩcki ◽  
Anna Grabowska

1965 ◽  
Vol 69 (6) ◽  
pp. 2044-2059 ◽  
Author(s):  
Norman M. Trieff ◽  
Benson R. Sundheim

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