Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Nikolai Tyutyulkov"'
Autor:
Nikolai Tyutyulkov, Fritz Dietz
Publikováno v:
Magnetic Properties of Organic Materials ISBN: 9780203748503
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc48c0a250d406d225394b38e16afe3b
https://doi.org/10.1201/9780203748503-23
https://doi.org/10.1201/9780203748503-23
Publikováno v:
Zeitschrift für Naturforschung B. 65:49-56
Nikolai Tyutyulkova, Nedko Drebovb, Klaus Mullenc, and Fritz Dietzd a University of Sofia, Faculty of Chemistry, Department of Physical Chemistry, 1, J. Bourchier blvd, 1129 Sofia, Bulgaria b Universitat Karlsruhe, Institut fur Physikalische Chemie,
Publikováno v:
Zeitschrift für Naturforschung B. 62:1433-1436
In this communication we consider a class of nonKekule molecules with a new structural principle and with (very) low excitation energies. The structural principle and the peculiarity of the investigated systems are described in detail in the followin
Publikováno v:
International Journal of Quantum Chemistry. 107:1396-1404
A new class of open-shell polymethine monoradicals, possessing nonbonding molecular orbitals (NBMO) and very low excitation energies, was investigated theoretically. The radicals are derivatives of the stable 2-azaphenalenyl radical. Since in the gro
Publikováno v:
Zeitschrift für Naturforschung B. 61:182-188
It is shown theoretically that the ground state of a new class of non-Kekulé polymethine molecules can be a triplet state with non-degenerate singly occupied MOs. The investigated polymethine cyanine cations, polymethine oxonol anions, and neutral p
Publikováno v:
Zeitschrift für Naturforschung B. 60:75-82
The photoswitching of optical and electrochemical properties of di-donor, di-acceptor and donor-acceptor substituted photochromic tetrahydropyrene - [2,2]metacyclophanene and dihydropyrene - [2,2]metacyclophanediene systems has been studied theoretic
Publikováno v:
Zeitschrift für Naturforschung B. 58:965-970
The structure and energy spectra of large polycyclic aromatic hydrocarbons (PAHs) with different symmetry and edge structure have been studied by quantum chemical methods. It is shown, that if the electron correlation is taken into account, the energ
Publikováno v:
Chemical Physics Letters. 379:11-19
The photoswitching of the dipole moment, absorption spectra and oxidation/reduction potentials of donor–acceptor-substituted dihydropyrene–[2,2]metacyclophanediene photochromic systems has been studied theoretically. Two types of basic structures
Publikováno v:
Chemical Physics. 287:71-82
The nature and the magnitude of the spin exchange interaction between the electrons within the half-filled band (HFB) arising as result of intermolecular π–π interaction between polymethine radicals in a two-dimensional Langmuir film has been inv
Publikováno v:
Phys. Chem. Chem. Phys.. 5:4932-4937
Alternating stacks of π-radicals and diamagnetic subunits are considered in detail as an extension of earlier work. Such alternating stacks are predicted to avoid the typical antiferromagnetic spin-exchange of identical face-to-face radicals via spi