Search Results - "Chapyshev, Sergei V"

Six-Membered Aromatic Polyazides: Synthesis and Application by Chapyshev, Sergei V

“…Aromatic polyazides are widely used as starting materials in organic synthesis and photochemical studies, as well as photoresists in microelectronics and as…”
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Chemoselective Staudinger-Phosphite Reaction on the Azido Groups of 2,4,6-Triazido-3,5-dibromopyridine by Chapyshev, Sergei V., Chernyak, Alexander V., Yakushchenko, Igor K.

“…2,4,6‐Triazido‐3,5‐dibromopyridine reacts with an equimolar amount of triethyl phosphite in ether at room temperature chemoselectively on the γ‐azido group to…”
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Matrix Isolation and EPR Spectroscopy of Septet 3,5-Difluoropyridyl-2,4,6-trinitrene by Chapyshev, Sergei V, Grote, Dirk, Finke, Christopher, Sander, Wolfram

“…Septet 3,5-difluoropyridyl-2,4,6-trinitrene along with quintet 2-azido-3,5-difluoropyridyl-4,6-dinitrene, quintet 4-azido-3,5-difluoropyridyl-2,6-dinitrene,…”
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High-spin intermediates of the photolysis of 2,4,6-triazido-3-chloro-5-fluoropyridine by Chapyshev, Sergei V, Korchagin, Denis V, Neuhaus, Patrik, Sander, Wolfram

“…In contrast to theoretical expectations, the photolysis of 2,4,6-triazido-3-chloro-5-fluoropyridine in argon at 5 K gives rise to EPR peaks of just two triplet…”
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Molecular Magnets: The Synthesis and Characterization of High‐Spin Nitrenes by Chapyshev, Sergei V., Mendez‐Vega, Enrique, Sander, Wolfram

“…Among all C‐, N‐, and O‐centered polyradicals, high‐spin nitrenes possess the largest magnetic anisotropy and are of considerable interest as multi‐level…”
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Strain Effects in Electron Spin Resonance Spectroscopy of Quintet 2,6-Bis(4′-nitrenophenyl)-4-phenylpyridine by Chapyshev, Sergei V, Korchagin, Denis V, Budyka, Mikhail F, Gavrishova, Tatiana N, Neuhaus, Patrik, Sander, Wolfram

“…Photolysis of 2,6-bis(4′-azidophenyl)-4-phenylpyridine in 2-methyltetrahydrofuran (2MTHF) glass at 7 K leads to quintet…”
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Frontispiece: Molecular Magnets: The Synthesis and Characterization of High‐Spin Nitrenes by Chapyshev, Sergei V., Mendez‐Vega, Enrique, Sander, Wolfram

“…The chemistry of high‐spin nitrenes is a relatively new research field aimed at designing tunable organic molecules in which spin populations on the Zeeman…”
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Quintet Dinitrenes with Negative Zero-Field Splitting: Effect of Spin–Orbit Coupling on the Sign of Magnetic Anisotropy by Korchagin, Denis V., Akimov, Alexander V., Savitsky, Anton, Chapyshev, Sergei V., Misochko, Eugenii Ya

“…We report on W-band EPR and quantum chemical investigation of novel organic tetraradicals with negative axial zero-field splitting (ZFS) parameter D. These…”
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Persistent Organic High‐Spin Trinitrenes by Mendez‐Vega, Enrique, Mieres‐Perez, Joel, Chapyshev, Sergei V., Sander, Wolfram

“…The septet ground state trinitrenes 1,3,5‐trichloro‐2,4,6‐trinitrenobenzene and 1,3,5‐tribromo‐2,4,6‐trinitrenobenzene were isolated in inert (Ar, Ne, and Xe)…”
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The powder X‐band electron paramagnetic resonance spectroscopy of septet pyridyl‐2,4,6‐trinitrene by Chapyshev, Sergei V., Korchagin, Denis V., Costa, Paulo, Sander, Wolfram

“…The first X‐band EPR spectrum containing only non‐overlapping signals of septet pyridyl‐2,4,6‐trinitrene and triplet pyridylnitrenes is reported. This spectrum…”
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EPR spectroscopy of multicomponent, multispin molecular system obtained by the photolysis of 2,4,6‐triazido‐3‐cyano‐5‐fluoropyridine in solid argon by Chapyshev, Sergei V., Korchagin, Denis V., Grote, Dirk, Sander, Wolfram

“…Complex multicomponent, multispin molecular system, consisting of a septet trinitrene, two quintet dinitrenes, and three triplet mononitrenes, was obtained by…”
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Photochemical generation of high-spin nitrenes from 4,6-diazido-N-(4,6-diazido-1,3,5-triazin-2-yl)-1,3,5-triazin-2-amine in solid argon by Chapyshev, Sergei V., Korchagin, Denis V., Costa, Paolo, Sander, Wolfram

“…•Selective photolysis of nonequivalent azido groups in aromatic tetraazides.•Matrix isolation and EPR spectroscopic characterization of a new quintet dinitrene…”
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Matrix Isolation, Zero-Field Splitting Parameters, and Photoreactions of Septet 2,4,6-Trinitrenopyrimidines by Chapyshev, Sergei V, Ushakov, Evgeny N, Neuhaus, Patrik, Sander, Wolfram

“…The key intermediates of decomposition of high-energy 2,4,6-triazidopyrimidine and its 5-chloro-substituted derivative, the detonation of which is used for…”
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Steric Heavy Atom Effect on Magnetic Anisotropy of Triplet Tribromophenyl Nitrenes by Korchagin, Denis V, Akimov, Alexander V, Savitsky, Anton, Chapyshev, Sergei V, Aldoshin, Sergey M, Misochko, Eugenii Ya

“…Previously unknown the steric heavy atom effect on magnetic anisotropy parameters of triplet phenyl nitrenes is reported. The heavy bromine atom effect is…”
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Di- and triazidation of 3-chlorotetrafluoropyridine by Chapyshev, Sergei V.

“…3-Chlorotetrafluoropyridine and pentafluoropyridine readily react with an excess of sodium azide in dimethylsulfoxide at room temperature to give corresponding…”
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Heavy Atom Effect on Magnetic Anisotropy of Matrix-Isolated Monobromine Substituted Septet Trinitrene by Misochko, Eugenii Ya, Masitov, Artem A, Akimov, Alexander V, Korchagin, Denis V, Chapyshev, Sergei V

“…The heavy atom effect on the magnetic anisotropy of septet trinitrenes is reported. Septet 1-bromo-3,5-dichloro-2,4,6-trinitrenobenzene (S-1) was generated in…”
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Mono-, Di-, and Trinitrenes in the Pyridine Series by Chapyshev, Sergei V, Kuhn, Arvid, Wong, Ming Wah, Wentrup, Curt

“…Tetrafluoro- and tetrachloro-4-pyridylnitrenes are formed on matrix photolysis of the corresponding azides and are found to be highly photostable in…”
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Synthesis, structure, and characterization of high-energy 4,6-diazido-N-(4,6-diazido-1,3,5-triazin-2-yl)-1,3,5-triazin-2-amine by Chapyshev, Sergei V., Korchagin, Denis V.

“…The high-energy compound 4,6-diazido- N -(4,6-diazido-1,3,5-triazin-2-yl)-1,3,5-triazin-2-amine was obtained in high yield by azidation of 4,6-dichloro- N…”
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13 C and 15 N NMR spectra of high-energy polyazidocyanopyridines by Chapyshev, Sergei V, Chernyak, Alexander V, Ushakov, Evgeny N

“…C and N NMR spectra of high-energy 2,4,6-triazidopyridine-3,5-dicarbonitrile, 2,3,5,6-tetraazidopyridine-4-carbonitrile and…”
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13C and 15N NMR spectra of high‐energy polyazidocyanopyridines by Chapyshev, Sergei V., Chernyak, Alexander V., Ushakov, Evgeny N.

“…13C and 15N NMR spectra of high‐energy 2,4,6‐triazidopyridine‐3,5‐dicarbonitrile, 2,3,5,6‐tetraazidopyridine‐4‐carbonitrile and…”
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