Zobrazeno 1 - 10
of 35
pro vyhledávání: '"G. N. Sinyakov"'
Publikováno v:
High Energy Chemistry. 36:255-259
Studies on the electronic structure of π-radical anions and π-dianions of Zn porphyrins, Zn chlorins, π-anions of Zn phlorins, and porphodimethenes by electronic absorption spectroscopy, luminescence, picosecond spectroscopy, ESR, NMR, IR, and Ram
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a7dacaeeeb7b7a53d1b6932bc2b0992
https://doi.org/10.1023/a:1016225407069
https://doi.org/10.1023/a:1016225407069
Publikováno v:
Journal of Applied Spectroscopy. 69:836-840
We have investigated the luminescent properties of π-anions in Zn and Pd complexes of octaethylporphin and etioporphyrin, and also of protonation products of π-dianions (π-monoanions of phlorins). It is established that the quantum yield of lumine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02e8c4eca931bd999deba62a67e7946c
https://doi.org/10.1023/a:1022402218479
https://doi.org/10.1023/a:1022402218479
Autor:
G. N. Sinyakov, E. E. Lobko
Publikováno v:
Optics and Spectroscopy. 91:690-693
It is shown by electron absorption spectroscopy methods that the reduction of Pd-octaethylporphin does not touch the unfilled dx2-y2 orbitals of metal. In the reduction products (mono-and dianions), excess electrons are distributed on the lowest vaca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61aac15563aea17d0278196c0df35b2b
https://doi.org/10.1134/1.1420849
https://doi.org/10.1134/1.1420849
Autor:
G. N. Sinyakov
Publikováno v:
Journal of Applied Spectroscopy. 67:786-790
The electron absorption spectra of protonation products of ClFe(III) anions-octaethylporphyrin (Fe(III)OEP) have been investigated. The spectra of monoanions (Fe(II)OEP) and dianions (Fe(I)OEP) in tetrahydrofuran remain practically unchanged on proto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f62452bf7ff1d7630f5d180edd635a30
https://doi.org/10.1023/a:1004195212577
https://doi.org/10.1023/a:1004195212577
Publikováno v:
Journal of Applied Spectroscopy. 66:566-569
The results of an investigation into neutral Fe-monoazaetioporphyrin (FeMAEP) and its reduced forms carried out using the methods of absorption spectroscopy, EPR, and Mossbauer spectroscopy are presented. It is shown that at room and liquid nitrogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1bd350539551419f7a64a3947b36a198
https://doi.org/10.1007/bf02675387
https://doi.org/10.1007/bf02675387
Autor:
N. V. Ivashin, K. Dzilinski, V. S. Chirvonyi, I. V. Filatov, Sergei N. Terekhov, A. M. Shul'ga, G. N. Sinyakov
Publikováno v:
Journal of Applied Spectroscopy. 66:528-532
We present a brief review of the results of an investigation into the electronic structure of π- and M-anions of tetrapyrrole compounds by the methods of molecular spectroscopy, namely, of electronic absorption and picosecond spectroscopy and also o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18e32e24418cca217ebe040ccae22376
https://doi.org/10.1007/bf02675380
https://doi.org/10.1007/bf02675380
Autor:
G. N. Sinyakov, A. M. Shul’ga
Publikováno v:
Journal of Applied Spectroscopy. 64:529-533
An analysis of1H NMR spectra of reduced Ni-octaethylporphin (NiOEP)n− n=2,3) complexes has allowed the conclusion that the first and third excess electrons are localized on orbitals of the porphyrin ligand, while the first excess electron is on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a8d20cf18fe151c30f401ddd984efad
https://doi.org/10.1007/bf02683899
https://doi.org/10.1007/bf02683899
Autor:
G. N. Sinyakov, V. N. Knyukshto
Publikováno v:
Journal of Applied Spectroscopy. 64:341-344
We investigate the luminescent properties (radiation spectrum, polarized spectrum) of the monoanions of Zn-octaethylphlorin, which is an intermediate product of the reduction, reaction of porphyrins. An oscillator model is presented that includes thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1762eced6e0fe4377c9ed4ff1a5759f7
https://doi.org/10.1007/bf02675095
https://doi.org/10.1007/bf02675095
Autor:
G. N. Sinyakov, A. M. Shulga
Publikováno v:
Journal of Structural Chemistry. 37:442-446
The behavior of the proton chemical shifts due to the addition of an extra electron to the starting diamagnetic complex of Ni(II)-octaethylporphyrin is studied. The isotropic shifts are analyzed, and it is concluded that the reduction affords Ni(I)-o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::552384de1cdf77acbddf3f776d982e43
https://doi.org/10.1007/bf02578598
https://doi.org/10.1007/bf02578598
Publikováno v:
Journal of Molecular Structure. 348:65-68
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22d274baccec235fef024996a4d4b2a1
https://doi.org/10.1016/0022-2860(95)08590-r
https://doi.org/10.1016/0022-2860(95)08590-r