Observation of a Metastable P-Heterocyclic Radical by Muonium Addition to a 1,3-Diphosphacyclobutane-2,4-diyl

2018 ◽  
Vol 130 (28) ◽  
pp. 8744-8749 ◽  
Author(s):  
Shigekazu Ito ◽  
Yasuhiro Ueta ◽  
Kota Koshino ◽  
Kenji M. Kojima ◽  
Iain McKenzie ◽  
...  
Keyword(s):  
Heterocyclic Radical

ChemInform Abstract: Heterocyclic Radical Mediated Synthesis and Fluorescence Properties of Conjugated Polyene Ketones.

ChemInform ◽  
2011 ◽  
Vol 42 (48) ◽  
pp. no-no
Author(s):  
Xiangdong Zhang ◽  
Junwei Ye ◽  
Suning Wang ◽  
Weitao Gong ◽  
Yuan Lin ◽  
...  
Keyword(s):  
Fluorescence Properties ◽  
Heterocyclic Radical

Electron spin relaxation of a boron-containing heterocyclic radical

2017 ◽  
Vol 276 ◽  
pp. 7-13 ◽  
Author(s):  
Sandra S. Eaton ◽  
Kirby Huber ◽  
Hanan Elajaili ◽  
Joseph McPeak ◽  
Gareth R. Eaton ◽  
...  
Keyword(s):  
Spin Relaxation ◽  
Electron Spin ◽  
Electron Spin Relaxation ◽  
Heterocyclic Radical

Synthesis and Electrochemical Reduction of Methyl 3-Halo-1-benzothiophene-2-carboxylates

2004 ◽  
Vol 69 (1) ◽  
pp. 242-260 ◽  
Author(s):  
Michal Rejňák ◽  
Jiří Klíma ◽  
Jiří Svoboda ◽  
Jiří Ludvík
Keyword(s):  
Cyclic Voltammetry ◽  
Radical Anion ◽  
Preparative Method ◽  
Platinum Electrodes ◽  
Disk Electrode ◽  
Dimer Formation ◽  
Halide Anion ◽  
Primary Radical ◽  
Heterocyclic Radical ◽  
Ece Mechanism

A preparative method of synthesis of the new methyl 3-iodo-1-benzothiophene-2-carboxylate was elaborated. Electrochemical behavior of methyl 3-chloro-, bromo- and iodo-1-benzothiophene-2-carboxylates 1-3, and of their reduction and dimer products 4, 5 in anhydrous dimethylformamide has been investigated at mercury and platinum electrodes using polarography, cyclic voltammetry and voltammetry on a rotating platinum disk electrode. The reduction in divided cells follows the ECE mechanism (electron - chemical step - electron), where the primary radical anion is split into a halide anion and neutral heterocyclic radical, which is immediately reduced by the second electron and protonated. The only reduction product is the methyl 1-benzothiophene-2-carboxylate (5); whereas the EDim mechanism (electron - dimer formation) leading to the dimeric species 4 was not observed under the above conditions. Reduction of 1-3 on platinum causes formation of a blocking film on the electrode. Sonication during electrolysis successfully reactivates the electrode.

A novel sulfur–nitrogen π-heterocyclic radical anion, (6H-1,2,3-benzodithiazol-6-ylidene)malononitrilidyl, and its homo- and heterospin salts

Polyhedron ◽  
2014 ◽  
Vol 72 ◽  
pp. 43-49 ◽  
Author(s):  
Alexander Yu. Makarov ◽  
Elena A. Chulanova ◽  
Nikolay A. Semenov ◽  
Nikolay A. Pushkarevsky ◽  
Anton V. Lonchakov ◽  
...  
Keyword(s):  
Radical Anion ◽  
Heterocyclic Radical

Heterocyclic radical ions. V. Electron spin resonance splittings of semifuraquinones

1971 ◽  
Vol 93 (12) ◽  
pp. 2913-2917 ◽  
Author(s):  
Stephen F. Nelsen ◽  
Enrique F. Travecedo ◽  
Errol D. Seppanen
Keyword(s):  
Electron Spin Resonance ◽  
Electron Spin ◽  
Radical Ions ◽  
Heterocyclic Radical ◽  
Spin Resonance

Electron paramagnetic resonance of a 10 B-containing heterocyclic radical

2018 ◽  
Vol 290 ◽  
pp. 76-84 ◽  
Author(s):  
Sandra S. Eaton ◽  
Thacien Ngendahimana ◽  
Gareth R. Eaton ◽  
Andrew R. Jupp ◽  
Douglas W. Stephan
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Paramagnetic Resonance ◽  
Heterocyclic Radical ◽  
Electron Paramagnetic
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