Anion Radicals of Isomeric [5,6] and [6,6] Benzoadducts of Sc3N@C80: Remarkable Differences in Endohedral Cluster Spin Density and Dynamics

2014 ◽  
Vol 136 (38) ◽  
pp. 13436-13441 ◽  
Author(s):  
Alexey A. Popov ◽  
Anastasia D. Pykhova ◽  
Ilya N. Ioffe ◽  
Fang-Fang Li ◽  
Luis Echegoyen
Keyword(s):  
Spin Density ◽  
Anion Radicals

Alkoxycyclooctatetraene Anion Radicals:  An Unusual Spin Density Perturbation Due to 1,3-Carbon/Carbon Interactions

1999 ◽  
Vol 103 (27) ◽  
pp. 5343-5347 ◽  
Author(s):  
Cheryl D. Stevenson ◽  
John P. Davis ◽  
Richard C. Reiter
Keyword(s):  
Spin Density ◽  
Density Perturbation ◽  
Anion Radicals

Spin‐Density Distribution in Nitrile Anion Radicals

1962 ◽  
Vol 37 (12) ◽  
pp. 2795-2810 ◽  
Author(s):  
Philip H. Rieger ◽  
George K. Fraenkel
Keyword(s):  
Density Distribution ◽  
Spin Density ◽  
Spin Density Distribution ◽  
Anion Radicals

Anion Radicals of Mono- and Bisfulleropyrrolidines:  g Tensors, Spin Density Distribution and Spin−Lattice Relaxation

2000 ◽  
Vol 104 (44) ◽  
pp. 9853-9863 ◽  
Author(s):  
Alfonso Zoleo ◽  
Anna Lisa Maniero ◽  
Maurizio Prato ◽  
Maria Gabriella Severin ◽  
Louis Claude Brunel ◽  
...  
Keyword(s):  
Density Distribution ◽  
Spin Density ◽  
Lattice Relaxation ◽  
Spin Density Distribution ◽  
Spin Lattice Relaxation ◽  
Spin Lattice ◽  
Anion Radicals

ESR study of anion radicals produced in cathodic reduction of 2-furfural derivatives

1979 ◽  
Vol 44 (3) ◽  
pp. 762-772 ◽  
Author(s):  
Andrej Staško ◽  
Peter Pelikán ◽  
František Tomanovič ◽  
Viliam Pätoprstý
Keyword(s):  
Nitrogen Atom ◽  
Nitro Group ◽  
Spin Density ◽  
Unpaired Electron ◽  
Indo Method ◽  
Hammett Constants ◽  
Half Wave ◽  
The Individual ◽  
Maximum Spin ◽  
Anion Radicals

Furfural and its derivatives are reduced reversibly to the corresponding anion radicals during polarography in dimethylformamide. These radicals have been studied by ESR, and analysis of their spectra has been carried out. The calculated splitting constants and half-wave potentials (INDO method) agree well with the experiment. The maximum spin density of the unpaired electron has been found for the aldehydic proton of the furfural anion (aH = 1.01 mT), the values for the remaining protons of furane ring being smaller (aH3 = 0.115 mT, aH4 = 0.49 mT, and aH5 = 0.64 mT). Introduction of nitro group in 5 position of furfural results in a marked shift of spin density of the nitrogen atom (aN = 0.533 mT) and decrease of density at the aldehydic proton (aH = 0.334 mT). Chenges of half-wave potentials of the individual furfural derivatives correlate well with changes in the respective Hammett constants of the substituents.

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