EPR Spectra from “EPR-Silent” Species:  High-Frequency and High-Field EPR Spectroscopy of Pseudotetrahedral Complexes of Nickel(II)

2002 ◽  
Vol 41 (17) ◽  
pp. 4478-4487 ◽  
Author(s):  
J. Krzystek ◽  
Ju-Hyun Park ◽  
Mark W. Meisel ◽  
Michael A. Hitchman ◽  
Horst Stratemeier ◽  
...  
Keyword(s):  
Epr Spectroscopy ◽  
High Frequency ◽  
High Field ◽  
Epr Spectra

scholarly journals EPR Spectra from “EPR-Silent” Species:  High-Field EPR Spectroscopy of Aqueous Chromium(II).

2000 ◽  
Vol 39 (8) ◽  
pp. 1834-1834 ◽  
Author(s):  
Joshua Telser ◽  
Luca A. Pardi ◽  
J. Krzystek ◽  
Louis-Claude Brunel
Keyword(s):  
Epr Spectroscopy ◽  
High Field ◽  
Epr Spectra

scholarly journals High-Field/High-Frequency EPR spectroscopy on synthetic melanin: on the origin of carbon-centered radicals

2021 ◽  
Author(s):  
João Vitor Paulin ◽  
Augusto Batagin-Neto ◽  
Boris Naydenov ◽  
Klaus Lips ◽  
Carlos F. O. Graeff
Keyword(s):  
Antioxidant Activity ◽  
Physicochemical Properties ◽  
Epr Spectroscopy ◽  
High Frequency ◽  
High Field ◽  
Broad Band ◽  
Metal Chelation

Among all pigments found in nature, melanin draws considerable attention for bioelectronics applications due to a set of physicochemical properties such as antioxidant activity, metal chelation, biocompatibility, broad-band absorbance throughout...

EPR Spectra from “EPR-Silent” Species:  High-Field EPR Spectroscopy of Aqueous Chromium(II)

1998 ◽  
Vol 37 (22) ◽  
pp. 5769-5775 ◽  
Author(s):  
Joshua Telser ◽  
Luca A. Pardi ◽  
J. Krzystek ◽  
Louis-Claude Brunel
Keyword(s):  
Epr Spectroscopy ◽  
High Field ◽  
Epr Spectra

Investigation of a Neat versus Magnetically Diluted Powdered Mononuclear MnII Complex by High-Field and High-Frequency EPR Spectroscopy

2004 ◽  
Vol 2004 (19) ◽  
pp. 3880-3886 ◽  
Author(s):  
Claire Mantel ◽  
Christian Philouze ◽  
Marie-Noëlle Collomb ◽  
Carole Duboc
Keyword(s):  
Epr Spectroscopy ◽  
High Frequency ◽  
High Field

EPR Spectra from “EPR-Silent” Species:  High-Field EPR Spectroscopy of Manganese(III) Porphyrins

1997 ◽  
Vol 119 (37) ◽  
pp. 8722-8723 ◽  
Author(s):  
David P. Goldberg ◽  
Joshua Telser ◽  
J. Krzystek ◽  
Antonio Garrido Montalban ◽  
Louis-Claude Brunel ◽  
...  
Keyword(s):  
Epr Spectroscopy ◽  
High Field ◽  
Epr Spectra

High-frequency/high-field EPR spectroscopy of the high-spin ferrous ion in hexaaqua complexes

2005 ◽  
Vol 43 (S1) ◽  
pp. S130-S139 ◽  
Author(s):  
Joshua Telser ◽  
Joris van Slageren ◽  
Suriyakan Vongtragool ◽  
Martin Dressel ◽  
William M. Reiff ◽  
...  
Keyword(s):  
High Spin ◽  
Epr Spectroscopy ◽  
High Frequency ◽  
High Field ◽  
Ferrous Ion

Properties of electrochemically generated primary cationradicals of phenyl- and 2-(4-tolyl)-1,3,4,7-tetramethylisoindoles

1980 ◽  
Vol 45 (6) ◽  
pp. 1669-1676 ◽  
Author(s):  
Pavel Kubáček
Keyword(s):  
Electrochemical Oxidation ◽  
Spin Polarization ◽  
High Spin ◽  
Epr Spectroscopy ◽  
Half Life ◽  
Electrochemical Behaviour ◽  
Epr Spectra ◽  
Electrochemical Generation ◽  
Splitting Constant ◽  
Reduced Temperature

The first step of electrochemical oxidation of 2-phenyl- and 2-(4-tolyl)-1,3,4,7-tetramethylisoindoles in anhydrous acetonitrile produces relatively stable cationradicals which have been studied by means of EPR spectroscopy using the method of internal electrochemical generation of radicals under reduced temperature. The same electrochemical behaviour of the both studied derivatives and identical EPR spectra of their cationradicals can be explained within the Huckel MO method. The largest contribution to the magnitude of splitting constant of nitrogen nucleus is due to π-σ-spin polarization of C-N bonds caused by high spin abundance of pz-AO of carbon atoms. Half-life of decomposition of the studied cationradicals is 4 min at -30°C.

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