scholarly journals Highly planar diarylamine-fused porphyrins and their remarkably stable radical cations

2017 ◽  
Vol 8 (1) ◽  
pp. 189-199 ◽  
Author(s):  
Norihito Fukui ◽  
Wonhee Cha ◽  
Daiki Shimizu ◽  
Juwon Oh ◽  
Ko Furukawa ◽  
...  
Keyword(s):  
High Temperature ◽  
Radical Cation ◽  
Radical Cations ◽  
Stable Radical

Oxidative fusion of a meso-phenoxazino Ni(ii) porphyrin at high temperature gave a doubly phenoxazine-fused porphyrin as a highly planar diarylamine-fused porphyrin. One-electron oxidation of the corresponding β,β-dichlorinated compound gave a remarkably stable radical cation.

The Interaction of Electrochemically Produced Radical Cations with Substituted Styrenes

1974 ◽  
Vol 52 (9) ◽  
pp. 1643-1647 ◽  
Author(s):  
B. Lionel Funt ◽  
Victor Verigin
Keyword(s):  
Radical Cation ◽  
Radical Cations ◽  
Stable Radical ◽  
Polymerization Process ◽  
Methyl Substituent ◽  
Initial Concentration ◽  
Controlled Potential Electrolysis ◽  
Controlled Potential ◽  
Rate Of Decay ◽  
Rates Of Decay

Relatively stable radical cations of 9,10-diphenylanthracene (DPA) were formed by controlled potential electrolysis of solutions in acetonitrile. The rates of decay of the ions were measured in the absence and presence of substituted styrenes, including α-methylstyrene, trans-β-methylstyrene, p-methylstyrene, and styrene. In rigorously dried solvent the radical cation was relatively stable, and its rate of decay was independent of its initial concentration. In the presence of monomers the rates of decay were increased greatly and were related to the position of the methyl substituent in the styrene structure.The rate was proportional to [Formula: see text] A mechanism is suggested and interpreted to show that the rates of cation decay are indicative of the rates of propagation in the polymerization process.

Electron n-doping of a highly electron-deficient chlorinated benzodifurandione-based oligophenylene vinylene polymer using benzyl viologen radical cations

2021 ◽  
Author(s):  
Teck Lip Dexter Tam ◽  
Albertus Denny Handoko ◽  
Ting Ting Lin ◽  
Jianwei Xu
Keyword(s):  
Radical Cation ◽  
Radical Cations ◽  
Benzyl Viologen ◽  
Electron Doping ◽  
N Doping ◽  
Polyphenylene Vinylene

Successful electron-doping of highly electron-deficient chlorinated benzodifurandione-based polyphenylene vinylene using viologen radical cation.

scholarly journals What Is the Structure of the Naphthalene–Benzene Heterodimer Radical Cation? Binding Energy, Charge Delocalization, and Unexpected Charge-Transfer Interaction in Stacked Dimer and Trimer Radical Cations

2015 ◽  
Vol 6 (7) ◽  
pp. 1111-1118 ◽  
Author(s):  
Isaac K. Attah ◽  
Sean P. Platt ◽  
Michael Meot-Ner (Mautner) ◽  
M. Samy El-Shall ◽  
Roberto Peverati ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Binding Energy ◽  
Radical Cation ◽  
Energy Charge ◽  
Radical Cations ◽  
Cation Binding ◽  
Charge Delocalization ◽  
Charge Transfer Interaction

Radical cation formation during the adsorption of polycyclic aromatic hydrocarbons on platinum oxide

1973 ◽  
Vol 26 (1) ◽  
pp. 221 ◽  
Author(s):  
JL Garnett ◽  
KJ Nicol ◽  
A Rainis
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Radical Cation ◽  
Aromatic Hydrocarbons ◽  
Hyperfine Splitting ◽  
Radical Cations ◽  
Platinum Oxide ◽  
Adsorbed Species ◽  
Experimental Conditions ◽  
Polycyclic Aromatic

Experimental conditions are reported for resolving the hyperfine splitting of e.p.r. spectra obtained from the interaction of polycyclic aromatic hydrocarbons with platinum oxide. By contrast with earlier interpretations where only a singlet was obtained even with perylene, the present results indicate that the adsorbed species are radical cations.

Radikalionen, 61 [1, 2]Dialkylamino-substituierte Acetylene und Allene:Ionisation, Oxidation und AlCl3-katalysierte Wasserstoffübertragung / Radical Ions, 61 [1, 2]Dialkylamino-substituted Acetylenes and Allenes:Ionisation, Oxidation and AlCl3-Catalyzed Hydrogen Transfer

1984 ◽  
Vol 39 (6) ◽  
pp. 763-770 ◽  
Author(s):  
Hans Bock ◽  
Wolfgang Kaim ◽  
Mitsuo Kira ◽  
Louis Réné ◽  
Heinz-Günther Viehe
Keyword(s):  
Radical Cation ◽  
Hydrogen Transfer ◽  
Radical Cations ◽  
Esr Spectra ◽  
Ionization Potentials ◽  
Radical Ions ◽  
Substituted Acetylenes

AbstractThe photoelectron (PE) spectra of bis(dialkylamino) acetylenes R2N-C≡C-NR2 and of tetrakis(dialkylamino) allenes (R2N)2C=C=C(NR2)2 with R = CH3, C2H5 exhibit characteristic ionization patterns which are assigned to π radical cation states of the two molecular halves twisted against each other. The low first ionization potentials between 7.0 eV and 7.7 eV stimu­lated attempts to oxidize using AlCl3 in H2CCl2 or D2CCl2. The hyperfine structured ESR spectra observed can be unequivocally assigned to the ethylene radical cations R2N-HC=CH -NR2˙⊕ which are formed from the obviously non-persistent species R2N-C≡C-NR2˙⊕ via a hydrogen transfer. During the oxidation of the dialkylamino-substituted allenes no paramagnetic intermedi­ates could be detected, presumably due to a rapid dimerisation of the allene radical cation (R2N)2C=C=C(NR2)2˙⊕.

Stable radical cation salt initiated N–H insertion and related proton-transfer-delay three-component reaction

2016 ◽  
Vol 57 (20) ◽  
pp. 2179-2182 ◽  
Author(s):  
Congde Huo ◽  
Haisheng Xie ◽  
Caixia Yang ◽  
Jie Dong ◽  
Yajun Wang
Keyword(s):  
Proton Transfer ◽  
Radical Cation ◽  
Stable Radical ◽  
Radical Cation Salt ◽  
Transfer Delay ◽  
Three Component Reaction

scholarly journals Stable Radical Cations of N , N′ ‐Diarylated Dihydrodiazapentacenes

2019 ◽  
Vol 26 (1) ◽  
pp. 160-164 ◽  
Author(s):  
Gaozhan Xie ◽  
Victor Brosius ◽  
Jie Han ◽  
Frank Rominger ◽  
Andreas Dreuw ◽  
...  
Keyword(s):  
Radical Cations ◽  
Stable Radical
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