Preparation of Coordinatively Asymmetrical Ruthenium(II) Polypyridine Complexes

1999 ◽  
Vol 38 (10) ◽  
pp. 2267-2278 ◽  
Author(s):  
Joseph A. Treadway ◽  
Thomas J. Meyer
Keyword(s):  
Polypyridine Complexes

Ruthenium Complexes for 1- and 2-Photon Photodynamic Therapy: From In Silico Prediction to In Vivo Applications

2020 ◽  
Author(s):  
Johannes Karges ◽  
Shi Kuang ◽  
Federica Maschietto ◽  
Olivier Blacque ◽  
Ilaria Ciofini ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
In Silico ◽  
Aqueous Solubility ◽  
The Body ◽  
Photon Absorption ◽  
Multicellular Tumor Spheroids ◽  
Spectral Window ◽  
Photon Excitation ◽  
Polypyridine Complexes

<div>The use of photodynamic therapy (PDT) against cancer has received increasing attention overthe recent years. However, the application of the currently approved photosensitizers (PSs) is somehow limited by their poor aqueous solubility, aggregation, photobleaching and slow clearance from the body. To overcome these limitations, there is a need for the development of new classes of PSs with ruthenium(II) polypyridine complexes currently gaining momentum. However, these compounds generally lack significant absorption in the biological spectral window, limiting their application to treat deep-seated or large tumors. To overcome this drawback, ruthenium(II) polypyridine complexes designed in silico with (E,E’)-4,4´-bisstyryl 2,2´-bipyridine ligands showed impressive 1- and 2-Photon absorption up to a magnitude higher than the ones published so far. While non-toxic in the dark, these compounds were found phototoxic in various 2D monolayer cells, 3D multicellular tumor spheroids and be able to eradicate a multiresistant tumor inside a mouse model upon clinically relevant 1-Photon and 2 Photon excitation.</div>

ChemInform Abstract: Ru(II) Polypyridine Complexes: Photophysics, Photochemistry, Electrochemistry, and Chemiluminescence

ChemInform ◽  
1988 ◽  
Vol 19 (31) ◽  
Author(s):  
A. JURIS ◽  
V. BALZANI ◽  
F. BARIGELLETTI ◽  
S. CAMPAGNA ◽  
P. BELSER ◽  
...  
Keyword(s):  
Polypyridine Complexes

scholarly journals RECENTES APLICAÇÕES DO ORGANOFOTOCATALISADOR 1,2,3,5-TETRAQUIS(CARBAZOL-9-IL)-4,6- DICIANOBENZENO EM TRANSFORMAÇÕES QUÍMICAS

Química Nova ◽  
2020 ◽  
Author(s):  
Lucas Pugnal ◽  
Emanuele Pissinati ◽  
Karina Quaglio ◽  
Márcio Paixão
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Chemical Transformations ◽  
Redox Potentials ◽  
Research Groups ◽  
Organic Fluorophores ◽  
Metal Free ◽  
Polypyridine Complexes ◽  
Distinguished Research

RECENT APPLICATIONS OF THE ORGANIC PHOTOCATALYST 1,2,3,5-TETRAKIS(CARBAZOL-9-YL)- 4,6-DICIANOBENZENE IN CHEMICAL TRANSFORMATIONS. Ruthenium and iridium polypyridine complexes are among the most employed photocatalysts described in literature. The broad applicability is due to the redox potentials and long half-life times of the excited state which these molecules presented. The pursuit for metal-free alternatives has been intensified in the last few years, therefore, many organic fluorophores were successfully employed as photocatalysts. Among them, 1,2,3,5-tetrakis(carbazol-9-yl)- 4,6-dicianobenzene (4CzIPN) recently drawn attention of the community, and it’s been widely employed by distinguished research groups. Recent studies have shown that this catalyst do not only present similar properties to transition metal complexes, but also, its synthesis can be accomplished more easily and less expensive when compared with the metallic photocatalysts above mentioned. Therefore, 4CzIPN constitutes a metal-free alternative to replace transition metal complexes in conventional photochemical protocols. Moreover, it’s as a powerful ally in the development of new photochemical approaches. In this work, we aim to summarize recent applications of 4CzIPN as catalyst in the emerging field of redox photocatalysis.

ChemInform Abstract: Photochemistry of Hetero-Tris-Chelated Ruthenium(II) Polypyridine Complexes in Dichloromethane.

ChemInform ◽  
1989 ◽  
Vol 20 (38) ◽  
Author(s):  
W. E. JUN. JONES ◽  
R. A. SMITH ◽  
M. T. ABRAMO ◽  
M. D. WILLIAMS ◽  
J. VAN HOUTEN
Keyword(s):  
Polypyridine Complexes

Photoelectrochemical behavior of surfactant polypyridine complexes of ruthenium adsorbed on SnO2 electrodes

1982 ◽  
Vol 140 (1) ◽  
pp. 179-185 ◽  
Author(s):  
Hideharu Daifuku ◽  
Koichi Aoki ◽  
Koichi Tokuda ◽  
Hiroaki Matsuda
Keyword(s):  
Polypyridine Complexes
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