Reactions of a Stable Phosphinyl Radical with Stable Aminoxyl Radicals

2015 ◽  
Vol 44 (1) ◽  
pp. 94-96 ◽  
Author(s):  
Shintaro Ishida ◽  
Fumiya Hirakawa ◽  
Takeaki Iwamoto
Keyword(s):  
Aminoxyl Radicals

Solvent effects on the nitrogen and β-hydrogen hyperfine splitting constants of aminoxyl radicals obtained in spin trapping experiments

1982 ◽  
Vol 60 (21) ◽  
pp. 2725-2733 ◽  
Author(s):  
Edward G. Janzen ◽  
Gregory A. Coulter ◽  
Uwe M. Oehler ◽  
John P. Bergsma
Keyword(s):  
Linear Relationship ◽  
Solvent Effects ◽  
Hyperfine Splitting ◽  
Spin Trapping ◽  
Tert Butyl ◽  
Aminoxyl Radicals ◽  
Structural Significance

The nitrogen and β-hydrogen hyperfine splitting constants (hfsc) for phenyl, 4-nitrophenyl, 4-pyridyl, benzoyl, and trichloromethyl spin adducts of α-phenyl tert-butyl nitrone (PBN) as well as for the tert-butoxyl adduct of 5,5-dimethylpyrroline-N-oxide (DMPO) have been obtained as a function of solvent (30 solvents). A useful linear relationship between the β-H hfsc and the N-hfsc of each aminoxyl is found except for the benzoyl adduct of PBN. Some speculations regarding the structural significance of these correlations is presented.

scholarly journals Aminoxyl Radicals Formed in the Reaction Between 2-Oximinopropanoic Acid or 2-Oximinopropane and Short-Lived Radicals Studied by EPR Spectroscopy.

1991 ◽  
Vol 45 ◽  
pp. 949-952 ◽  
Author(s):  
Carl Lagercrantz ◽  
Kostas Karagiannis ◽  
Dimitrios Vynios ◽  
Dionissios Papaioannou ◽  
Dagfinn W. Aksnes ◽  
...  
Keyword(s):  
Epr Spectroscopy ◽  
Aminoxyl Radicals

scholarly journals Aminoxyl Radicals of B/P Frustrated Lewis Pairs: Refinement of the Spin-Hamiltonian Parameters by Field- and Temperature-Dependent Pulsed EPR Spectroscopy

PLoS ONE ◽  
2016 ◽  
Vol 11 (6) ◽  
pp. e0157944 ◽  
Author(s):  
Marcos de Oliveira ◽  
Robert Knitsch ◽  
Muhammad Sajid ◽  
Annika Stute ◽  
Lisa-Maria Elmer ◽  
...  
Keyword(s):  
Epr Spectroscopy ◽  
Spin Hamiltonian ◽  
Frustrated Lewis Pairs ◽  
Temperature Dependent ◽  
Pulsed Epr ◽  
Hamiltonian Parameters ◽  
Aminoxyl Radicals ◽  
Lewis Pairs

Aminoxyl Radicals as MRI Contrast Agents

1992 ◽  
pp. 573-583 ◽  
Author(s):  
Edward G. Janzen ◽  
Rheal A. Towner
Keyword(s):  
Contrast Agents ◽  
Mri Contrast Agents ◽  
Mri Contrast ◽  
Aminoxyl Radicals

E.S.R. of the conformation of 5- and 6-membered cyclic nitroxide (aminoxyl) radicals

2007 ◽  
pp. 145-182 ◽  
Author(s):  
A. rockenbauer ◽  
M. Györ ◽  
H. O. Hankovszky ◽  
K. Hideg
Keyword(s):  
Aminoxyl Radicals

Synthesis of a Dihydroxy-Substituted Aminoxyl Spin Label and its Crown Ether and Cyclic Diester Derivatives

1993 ◽  
Vol 48 (4) ◽  
pp. 505-510 ◽  
Author(s):  
Yong-Kang Zhang ◽  
De-Kang Shen
Keyword(s):  
Crown Ether ◽  
Intramolecular Cyclization ◽  
Spin Label ◽  
Cyclic Ether ◽  
Synthetic Approach ◽  
Aminoxyl Radicals

A novel dihydroxy-substituted aminoxyl spin label, 4-hydroxy-3-(3'-hydroxypropyl)-2,2,6,6-tetramethylpiperidine-1-oxy (5), has been prepared. From this aminoxyl radical, a spin-labeled crown ether, 16,16,18,18-tetramethyl-2,5,8,11-tetraoxa-17-azabicyclo[ 13,4,0]-nonadecane-17-oxy (12), and a spin-labeled cyclic diester, 16,16,18,18-tetramethyl-3,10-dioxo-2,5,8,11-tetraoxa-17-azabicyclo[13,4,o]nonadecane-17-oxy (13), have been acquired. Other four new stable aminoxyl radicals 8,9,10, and 11 have also been obtained within the synthetic approach. It has been demonstrated that the cyclic ether compound (7) is generated by the reduction of its corresponding lactone which is sidely derived from the oxo-reduced species of 3 by intramolecular cyclization.

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