scholarly journals Crystalline salts of metal phthalocyanine radical anions [M(Pc˙3−)]˙− (M = CuII, PbII, VIVO, SnIVCl2) with cryptand(Na+) cations: structure, optical and magnetic properties

2017 ◽  
Vol 41 (14) ◽  
pp. 6866-6874 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Maxim A. Faraonov ◽  
Alexey V. Kuzmin ◽  
Salavat S. Khasanov ◽  
Yoshiaki Nakano ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Radical Anion ◽  
Radical Anions ◽  
Metal Phthalocyanine ◽  
Metal Phthalocyanines ◽  
Optical And Magnetic Properties

Radical anion salts of metal phthalocyanines (M = CuII, PbII, VIVO and SnIVCl2) with the {cryptand(Na+)} cations have been obtained and studied.

Flavanthrone – a new ligand with accessible radical anion and dianion states: preparation of zwitterionic {(Cp2V)2(flavanthrone)} and {(Cp2V)2(chloranil)} complexes

2020 ◽  
Vol 44 (26) ◽  
pp. 10849-10858 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Mikhail G. Andronov ◽  
Mikhail S. Batov ◽  
Alexey V. Kuzmin ◽  
Salavat S. Khasanov ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Magnetic Properties ◽  
Radical Anion ◽  
Radical Anions ◽  
Optical And Magnetic Properties

Molecular structure, optical and magnetic properties of the radical anions and dianions of flavanthrone dye are presented. Flavanthrone and chloranil coordinate two vanadocenes forming zwitter-ionic {(Cp2V+)2(Flavanthrone2−)} and {(Cp2V+)2(QCl42−)}.

scholarly journals Radical anion and dianion salts of titanyl macrocycles with acceptor substituents or an extended π-system

2017 ◽  
Vol 46 (11) ◽  
pp. 3547-3555 ◽  
Author(s):  
Maxim A. Faraonov ◽  
Dmitri V. Konarev ◽  
Alexey M. Fatalov ◽  
Salavat S. Khasanov ◽  
Sergey I. Troyanov ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Radical Anion ◽  
System P ◽  
Optical And Magnetic Properties

Crystalline anionic salts of titanyl macrocycles: (PPN+)2{OTiIV(PcCl84−)}2− (1), (PPN+){OTiIV(Nc˙3−)}˙−·solv (2) and (PPN+)2{OTiIV(AceTPrzPz4−)}2−·solv (see figure, 3) have been obtained and their optical and magnetic properties are studied.

Solid State Structure, and Optical and Magnetic Properties, of Free Base Tetra(4-pyridyl)porphyrin {H2T(4-Py)P}•– Radical Anions

2018 ◽  
Vol 83 (4) ◽  
pp. 1861-1866 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Aleksey V. Kuzmin ◽  
Salavat S. Khasanov ◽  
Alexander F. Shestakov ◽  
Evgeniya I. Yudanova ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Solid State ◽  
Radical Anions ◽  
Free Base ◽  
State Structure ◽  
Solid State Structure ◽  
Optical And Magnetic Properties

Molecular structures, and optical and magnetic properties of free-base tetrapyrazinoporphyrazine in various reduction states

2019 ◽  
Vol 43 (48) ◽  
pp. 19214-19222 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Maxim A. Faraonov ◽  
Alexey V. Kuzmin ◽  
Nikita G. Osipov ◽  
Salavat S. Khasanov ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Structural Characterization ◽  
Radical Anion ◽  
Molecular Structures ◽  
The Novel ◽  
Free Base ◽  
Optical And Magnetic Properties

The synthesis, and spectral and structural characterization of the novel radical anion and dianion salts of free-base tetrapyrazinoporphyrazine (H2TPyzPz) as well as studies of their magnetic properties have been described.

Optical and magnetic properties of trans-indigo˙− radical anions. Magnetic coupling between trans-indigo˙− (S = 1/2) mediated by intermolecular hydrogen N–H⋯OC bonds

2019 ◽  
Vol 43 (19) ◽  
pp. 7350-7354 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Leokadiya V. Zorina ◽  
Mikhail S. Batov ◽  
Salavat S. Khasanov ◽  
Akihiro Otsuka ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Magnetic Coupling ◽  
Radical Anions ◽  
Optical And Magnetic Properties

Reduction of trans-indigo yields salt {cryptand[2.2.2](K+)}6{trans-indigo}7·5.5C6H4Cl2 (1). The trans-indigo˙− radical anions are bonded by intermolecular hydrogen N–H⋯OC bonds of 2.11–2.17 Å.

Design, crystal structures and magnetic properties of anionic salts containing fullerene C60 and indium(iii) bromide phthalocyanine radical anions

2014 ◽  
Vol 43 (34) ◽  
pp. 13061-13069 ◽  
Author(s):  
Dmitri V. Konarev ◽  
Alexey V. Kuzmin ◽  
Salavat S. Khasanov ◽  
Akihiro Otsuka ◽  
Hideki Yamochi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Crystal Structures ◽  
Fullerene C60 ◽  
Radical Anions ◽  
Optical And Magnetic Properties

Salts containing fullerene C60 and indium(iii) bromide phthalocyanine (Pc) radical anions, (TBA+)3(C60˙−){InIII(Br)(Pc)˙−}(Br−)·C6H4Cl2 (1) and (TEA+)2(C60˙−){InIII(Br)(Pc)˙−}·C6H4Cl2·C6H14 (2), have been obtained and their structures, optical and magnetic properties are discussed.

Stability of radical anions derived from substituted 5-nitrofurans investigated by ESR spectroscopy

1985 ◽  
Vol 50 (7) ◽  
pp. 1594-1601 ◽  
Author(s):  
Jiří Klíma ◽  
Larisa Baumane ◽  
Janis Stradinš ◽  
Jiří Volke ◽  
Romualds Gavars
Keyword(s):  
Radical Anion ◽  
High Stability ◽  
Esr Spectroscopy ◽  
Reaction Path ◽  
Order Reaction ◽  
Second Order ◽  
Radical Anions ◽  
Second Order Reaction ◽  
Unpaired Electron Density ◽  
The Stability

It has been found that the decay in dimethylformamide and dimethylformamide-water mixtures of radical anions in five of the investigated 5-nitrofurans is governed by a second-order reaction. Only the decay of the radical anion generated from 5-nitro-2-furfural III may be described by an equation including parallel first- and second-order reactions; this behaviour is evidently caused by the relatively high stability of the corresponding dianion, this being an intermediate in the reaction path. The presence of a larger conjugated system in the substituent in position 2 results in a decrease of the unpaired electron density in the nitro group and, consequently, an increase in the stability of the corresponding radical anions.

scholarly journals Monitoring of the Mechanism of Mn Ions Incorporation into Quantum Dots by Optical and EPR Spectroscopy

Photonics ◽  
2019 ◽  
Vol 6 (4) ◽  
pp. 107
Author(s):  
Yuriy G. Galyametdinov ◽  
Dmitriy O. Sagdeev ◽  
Andrey A. Sukhanov ◽  
Violeta K. Voronkova ◽  
Radik R. Shamilov
Keyword(s):  
Electron Paramagnetic Resonance ◽  
Magnetic Properties ◽  
Luminescent Properties ◽  
Manganese Concentration ◽  
Manganese Ions ◽  
Paramagnetic Resonance ◽  
Synthesis Of Nanoparticles ◽  
Zinc Sulfide Nanoparticles ◽  
Optical And Magnetic Properties ◽  
Electron Paramagnetic

Synthesis of nanoparticles doped with various ions can significantly expand their functionality. The conditions of synthesis exert significant influence on the distribution nature of doped ions and therefore the physicochemical properties of nanoparticles. In this paper, a correlation between the conditions of synthesis of manganese-containing cadmium sulfide or zinc sulfide nanoparticles and their optical and magnetic properties is analyzed. Electron paramagnetic resonance was used to study the distribution of manganese ions in nanoparticles and the intensity of interaction between them depending on the conditions of synthesis of nanoparticles, the concentration of manganese, and the type of initial semiconductor. The increase of manganese concentration is shown to result in the formation of smaller CdS-based nanoparticles. Luminescent properties of nanoparticles were studied. The 580 nm peak, which is typical for manganese ions, becomes more distinguished with the increase of their concentration and the time of synthesis.

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