Thermochromism of Metal Ion Complexes of Semiquinone Radical Anions. Control of Equilibria between Diamagnetic and Paramagnetic Species by Lewis Acids

2005 ◽  
Vol 109 (41) ◽  
pp. 9356-9362 ◽  
Author(s):  
Junpei Yuasa ◽  
Tomoyoshi Suenobu ◽  
Shunichi Fukuzumi
Keyword(s):  
Lewis Acids ◽  
Metal Ion ◽  
Paramagnetic Species ◽  
Radical Anions ◽  
Semiquinone Radical ◽  
Metal Ion Complexes

Photolytic and thermal annealing of radical anions gamma-irradiated monocarboxylic acids

1979 ◽  
Vol 44 (12) ◽  
pp. 3632-3643 ◽  
Author(s):  
Karel Mach ◽  
Igor Janovský ◽  
Karel Vacek
Keyword(s):  
Thermal Annealing ◽  
Pivalic Acid ◽  
Esr Spectra ◽  
Paramagnetic Species ◽  
Radical Anions ◽  
Γ Irradiation ◽  
Before And After ◽  
Optical Bleaching ◽  
The Difference ◽  
Gamma Irradiated

Total yields of paramagnetic species, their optical bleaching and thermal annealing in acetic, propionic, a-butyric, isobutyric, and pivalic acid γ-irradiated at 77 K were followed by ESR spectroscopy. Radical anions, always found after irradiation, disappear during optical bleaching without formation of any paramagnetic product. During thermal annealing they are converted almost quantitatively into the α-radicals of the respective acid, with the exception of pivalic acid. Amounts of radical anions were estimated from the difference of integrated ESR spectra taken before and after optical bleaching. The results show that approximately equal amounts of the reduction and oxidation paramagnetic products of the γ-irradiation can be detected.

Cleavage and isomerisation of UpU promoted by dinuclear metal ion complexes

2008 ◽  
Author(s):  
Heidi Linjalahti ◽  
Guoqiang Feng ◽  
Juan C. Mareque-Rivas ◽  
Satu Mikkola ◽  
Nicholas H. Williams
Keyword(s):  
Metal Ion ◽  
Metal Ion Complexes

Molecular dynamics of macrocycle-metal ion complexes involving heteronuclear binding atoms

1989 ◽  
Vol 61 (9) ◽  
pp. 1593-1596 ◽  
Author(s):  
L. J. Rodriguez ◽  
M. Xu ◽  
E. M. Eyring ◽  
S. Petrucci
Keyword(s):  
Molecular Dynamics ◽  
Metal Ion ◽  
Metal Ion Complexes

New divalent metal ion complexes with 1,8-diaminonapthalene -2-thione: Synthesis, Spectroscopic, anti-bacterial and anticancer activity studies

2021 ◽  
pp. 131291
Author(s):  
Ahmed S. Faihan ◽  
Mohammad R. Hatshan ◽  
Ali S. Alqahtani ◽  
Fahd A. Nasr ◽  
Subhi A. Al-Jibori ◽  
...  
Keyword(s):  
Anticancer Activity ◽  
Metal Ion ◽  
Divalent Metal ◽  
Metal Ion Complexes ◽  
Divalent Metal Ion
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