Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Mark B. Bushuev"'
Autor:
Nikita A. Shekhovtsov, Elena B. Nikolaenkova, Alexey A. Ryadun, Denis G. Samsonenko, Alexsei Ya. Tikhonov, Mark B. Bushuev
Publikováno v:
Molecules, Vol 28, Iss 4, p 1793 (2023)
1H-Imidazole derivatives establish one of the iconic classes of ESIPT-capable compounds (ESIPT = excited state intramolecular proton transfer). This work presents the synthesis of 1-hydroxy-4-(2-hydroxyphenyl)-5-methyl-2-(pyridin-2-yl)-1H-imidazole (
Externí odkaz:
https://doaj.org/article/c2f4203456584a8c8144c4d7639290ce
Autor:
Nikita A. Shekhovtsov, Elena B. Nikolaenkova, Alexey A. Ryadun, Sofia N. Vorobyeva, Viktor P. Krivopalov, Mark B. Bushuev
Publikováno v:
New Journal of Chemistry. 47:6361-6377
ESIPT-capable 2-(2-hydroxyphenyl)-4-(1H-pyrazol-1-yl)pyrimidines exhibit dual emission associated with interplay of phosphorescence and fluorescence.
Autor:
Tatyana E. Kokina, Nikita A. Shekhovtsov, Eugene S. Vasilyev, Ludmila A. Glinskaya, Aleksandr V. Mikheylis, Victor F. Plyusnin, Alexey V. Tkachev, Mark B. Bushuev
Publikováno v:
Dalton Transactions.
A slight structural modification while going from a 4,5-diazafluorene ligand to a 4,5-diazafluorene-9-one ligand leads to a significant change in the emission properties of their Zn(ii) and Cd(ii) complexes.
Autor:
Nikita Shekhovtsov, Elena B Nikolaenkova, Sofia Vorob'eva, Victor F. Plyusnin, Katerina A. Vinogradova, Taisiya Sukhikh, Alexsei Ya. Tikhonov, Mark B Bushuev
Publikováno v:
Dalton Transactions.
Rational design of ESIPT-capable metal complexes (ESIPT – Excited State Intramolecular Proton Transfer) requires two sites, namely an ESIPT site and a metal binding site, to be spatially separated into...
Autor:
Nikita A. Shekhovtsov, Alexey A. Ryadun, Victor F. Plyusnin, Elena B. Nikolaenkova, Alexsei Ya. Tikhonov, Mark B. Bushuev
Publikováno v:
New Journal of Chemistry. 46:22804-22817
In MeCN solution, a 2-aroyl-1-hydroxy-1H-imidazole-based ESIPT emitter exists in a series of forms and shows rather rare excitation wavelength-dependent emission.
Autor:
Nikita A. Shekhovtsov, Elena B. Nikolaenkova, Alexey S. Berezin, Victor F. Plyusnin, Katerina A. Vinogradova, Dmitry Yu. Naumov, Natalia V. Pervukhina, Alexsei Ya. Tikhonov, Mark B. Bushuev
Publikováno v:
Dalton Transactions. 51:15166-15188
Tuning ESIPT by expanding π-conjugation of a proton-accepting moiety: the quinolin-2-yl group facilitates the delocalization of electrical charge and promotes the ESIPT reaction.
Autor:
Nikita A. Shekhovtsov, Katerina A. Vinogradova, Sofia N. Vorobyova, Alexey S. Berezin, Victor F. Plyusnin, Dmitry Yu. Naumov, Natalia V. Pervukhina, Elena B. Nikolaenkova, Alexsei Ya. Tikhonov, Mark B. Bushuev
Publikováno v:
Dalton Transactions. 51:9818-9835
ESIPT-capable zinc(ii) complexes with an ESIPT-ligand featuring spatially separated metal binding and ESIPT sites have been synthesized. The complexes undergo phototautomerization and show excitation wavelength dependent fluorescence.
Autor:
Mark B. Bushuev, Viktor P. Krivopalov, Elena B. Nikolaenkova, Katerina A. Vinogradova, Nikita A. Shekhovtsov
Publikováno v:
Journal of Structural Chemistry. 61:1521-1529
DFT and TD-DFT calculations at the B3LYP/LANL2DZ level of theory are performed in order to explain the origins of dual fluorescence and uncover the relaxation pathways of 2-amino-4-methylpyrimidine (L). The computations are in good agreement with exp
Autor:
Nikita A. Shekhovtsov, Tatyana E. Kokina, Katerina A. Vinogradova, Andrey Y. Panarin, Marianna I. Rakhmanova, Dmitry Y. Naumov, Natalya V. Pervukhina, Elena B. Nikolaenkova, Viktor P. Krivopalov, Rafał Czerwieniec, Mark B. Bushuev
Publikováno v:
Dalton transactions (Cambridge, England : 2003). 51(7)
Mononuclear copper(i) complexes demonstrate T1 → S0 phosphorescence in the near-infrared region associated with ligand-to-metal charge transfer. The most effective intersystem crossing channels are S6 → T7, S6 → T8 and S10 → T12.
Publikováno v:
Journal of Structural Chemistry. 61:1380-1389
Magnetic and thermodynamic properties of heteroanion complex compounds in the Fe2+–ATrz– $$\text{NO}^{-}_3$$ – $$\text{SO}_4^{2-}$$ (ATrz = 4-amino-1,2,4-triazole) system are studied. The Fe(ATrz)3(NO3)2(1–x)(SO4)x·nH2O phases are synthesize