Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Michał F. Rode"'
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-12 (2022)
Abstract In photochemistry the excited-state intramolecular proton transfer process (ESIPT) is often observed as a highly efficient singlet excited state depletion pathway, which in the presence of a strong intramolecular hydrogen bond may proceed on
Externí odkaz:
https://doaj.org/article/8c125384251d495992a948e205eece11
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-8 (2022)
Abstract 3,3-Diphenylbenzo[f]chromene (1) represents an important architectural platform for photochromic systems. Since the practical utility of such chromophores is largely dependent upon the kinetics of coloration and decoloration, elucidating the
Externí odkaz:
https://doaj.org/article/5df602b31fd344feb4c1a4b3a71d65ba
Publikováno v:
Molecules, Vol 27, Iss 23, p 8225 (2022)
In the tautomeric Schiff bases, derived from 7-hydroxyquinoline, two competitive channels are possible upon excitation of the enol tautomer, namely proton transfer (PT) through intramolecular hydrogen bonding to the corresponding keto form and trans
Externí odkaz:
https://doaj.org/article/c2838b73d7724ac1bba1c37972f7f6fc
Autor:
Sabina Brazevic, Stanisław Nizinski, Michel Sliwa, Jiro Abe, Michał F. Rode, Gotard Burdzinski
Publikováno v:
International Journal of Molecular Sciences, Vol 21, Iss 21, p 7825 (2020)
In the photochromic reactions of 3H-naphthopyrans, two colored isomers TC (transoid-cis) and TT (transoid-trans) are formed. In terms of optimized photo-switchable materials, synthetic efforts are nowadays evolving toward developing 3H-naphthopyran d
Externí odkaz:
https://doaj.org/article/3454b488b0134abd859ce914ca212378
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany).
Core-fluorescent cavitands based on 2-(2'-resorcinol)benzimidazole fluorophores (RBIs) merged with the resorcin[4]arene skeleton were designed and synthesized. The cavitands, due to the presence of intramolecular hydrogen bonds and increased acidity,
Publikováno v:
ChemPhysChem. 21:1402-1407
Recent efforts in designing new 3H-naphthopyran derivatives have been focused on efficient coloration process with a short fading time of the colored transoid-cis TC isomer. It is desirable to avoid photoisomerization of TC leading to transoid-trans
Autor:
Gotard Burdzinski, Z. Fojud, Ewelina Paluch-Lubawa, Łukasz Popenda, Michał F. Rode, Agnieszka Kumorkiewicz, Sławomir Wybraniec, Stanislaw Nizinski
Publikováno v:
New Journal of Chemistry. 43:18165-18174
The chemical structure of a yellow dye present in Mirabilis jalapa L., miraxanthin I, was characterized by NMR spectroscopy. The extract of M. jalapa was analysed by a high-performance liquid chromatographic system (LC-DAD-FL-ESI-MS/MS) and the prese
Publikováno v:
Dyes and Pigments. 201:110249
Publikováno v:
Chemistry - A European Journal. 24:855-864
The series of bis-aryl-dipyrrolonaphthyridinediones (DPNDs) with different substitution patterns have been designed and synthesized via direct arylation methodology. This reaction occurs regioselectively at positions 3 and 9, thus giving a straightfo
Autor:
Stanislaw Nizinski, Gotard Burdzinski, Dorota Prukała, Monika Wendel, Marek Sikorski, Michał F. Rode, Sławomir Wybraniec
Publikováno v:
RSC Advances. 7:6411-6421
Miraxanthin V is a betaxanthin dye occurring in Caryophyllales plants. This work describes its photophysical properties in aqueous and alcoholic solutions. After excitation at λexc = 480 nm (2.6 eV), transient absorption spectrum of the excited S1 s