scholarly journals Understanding the factors controlling the photo-oxidation of natural DNA by enantiomerically pure intercalating ruthenium polypyridyl complexes through TA/TRIR studies with polydeoxynucleotides and mixed sequence oligodeoxynucleotides

2020 ◽  
Vol 11 (32) ◽  
pp. 8600-8609 ◽  
Author(s):  
Páraic M. Keane ◽  
Kyra O'Sullivan ◽  
Fergus E. Poynton ◽  
Bjørn C. Poulsen ◽  
Igor V. Sazanovich ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Base Pair ◽  
Ruthenium Polypyridyl ◽  
Polypyridyl Complexes ◽  
Enantiomerically Pure ◽  
Photo Oxidation ◽  
Mixed Sequence ◽  
Ruthenium Polypyridyl Complexes

Efficient electron transfer requires the complex to be intercalated at a G-C base-pair. Identification of preferred intercalation sites is achieved by TRIR monitoring of the nucleobase vibrations before electron transfer.

Vectorial Electron Transfer in Donor-Photosensitizer-Acceptor Triads Based on Novel Bis-tridentate Ruthenium Polypyridyl Complexes

2010 ◽  
Vol 16 (9) ◽  
pp. 2830-2842 ◽  
Author(s):  
Rohan J. Kumar ◽  
Susanne Karlsson ◽  
Daniel Streich ◽  
Alice Rolandini Jensen ◽  
Michael Jäger ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ruthenium Polypyridyl ◽  
Polypyridyl Complexes ◽  
Ruthenium Polypyridyl Complexes

Influence of the Attaching Group and Substituted Position in the Photosensitization Behavior of Ruthenium Polypyridyl Complexes

1999 ◽  
Vol 38 (26) ◽  
pp. 6320-6322 ◽  
Author(s):  
Yuan-jun Hou ◽  
Pu-hui Xie ◽  
Bao-wen Zhang ◽  
Yi Cao ◽  
Xu-rui Xiao ◽  
...  
Keyword(s):  
Ruthenium Polypyridyl ◽  
Polypyridyl Complexes ◽  
Ruthenium Polypyridyl Complexes

Modulation of Internuclear Communication in Multinuclear Ruthenium(II) Polypyridyl Complexes

2003 ◽  
Vol 68 (8) ◽  
pp. 1467-1487 ◽  
Author(s):  
Wesley R. Browne ◽  
Frances Weldon ◽  
Adrian Guckian ◽  
Johannes G. Vos
Keyword(s):  
Ground State ◽  
Weak Interactions ◽  
Electrochemical Studies ◽  
Protonation State ◽  
Ruthenium Polypyridyl ◽  
Bridging Ligands ◽  
Polypyridyl Complexes ◽  
Bridging Ligand ◽  
Dinuclear Ruthenium ◽  
Ruthenium Polypyridyl Complexes

The syntheses and characterisation of a series of mononuclear and dinuclear ruthenium polypyridyl complexes based on the bridging ligands 1,3-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 1,4-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]benzene, 2,5-bis-[5-(2-pyridyl)-1H-1,2,4-triazol-3-yl]thiophene, 2,5-bis-[5-pyrazinyl-1H-1,2,4-triazol-3-yl]thiophene are reported. Electrochemical studies indicate that in these systems, the ground state interaction is critically dependent on the nature of the bridging ligand and its protonation state, with strong and weak interactions being observed for thiophene- and phenylene-bridged complexes, respectively.

scholarly journals Quantitative description of MLCT transitions in ruthenium polypyridyl complexes probed by two-photon absorption spectroscopy

2018 ◽  
Vol 190 ◽  
pp. 03012
Author(s):  
Charles W. Stark ◽  
M. Rammo ◽  
K. Petritšenko ◽  
J. Pahapill ◽  
A. Mikhaylov ◽  
...  
Keyword(s):  
Cross Section ◽  
Quantitative Description ◽  
Photon Absorption ◽  
Charge Transfer Transition ◽  
Ruthenium Polypyridyl ◽  
Polypyridyl Complexes ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Ligand Charge Transfer ◽  
Ruthenium Polypyridyl Complexes

Quantitative two-photon absorption (2PA) cross section and 2PA spectrum measurements were used to determine the molecular electric dipole change in the metal-to-ligand charge-transfer transition of ruthenium(II) tris-complexes of 2,2’-bipyridine ([Ru(bpy)3]2+) and 1,10-phenanthroline ([Ru(phen)3]2+) in several solvents.

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