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Synthesis, structure, and photoluminescent and electroluminescent properties of zinc(II) complexes with bidentate azomethine ligandsстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 января 2021 г.
- Авторы: Burlov1 Maxim S Milutka1 Dmitry A Lypenko3 | Nadezhda I Makarova1 Yan V Zubavichus5 | | | Valery G Vlasenko2 | Yurii V Koshchienko1 | Eugene I Mal'tsev3 | Artem V Dmitriev3 | Natalia V Nekrasova3 | | Anatolii V Metelitsa1 Victor N Khrustalev6 Anatolii S., Kolodina1 | Vladimir A Lazarenko4 | | Dmitrii A Garnovskii1 7.Alexandra A, 8
- Журнал: Applied Organometallic Chemistry
- Год издания: 2020
- Издательство: John Wiley & Sons Inc.
- Местоположение издательства: United States
- Номер статьи: DOI: 10.1002/aoc.6107
- DOI: 10.1002/aoc.6107
- Аннотация: New Zn(II) complexes of bidentate Schiff base ligands were synthesized and characterized by 1H NMR, IR spectroscopy, and elemental analysis. The single- crystal X-ray diffraction study revealed that all compounds can be represented as mononuclear zinc(II) complexes with two bidentate organic ligands coordi- nated to the central metal atom by two oxygen and two nitrogen atoms. The photophysical properties of the complexes were investigated by UV–vis and photoluminescence spectroscopy in dimethyl sulfoxide (DMSO) solutions. It was found that the positions of maxima of the long-wavelength absorption bands and photoluminescence depend strongly on the substituent in the alde- hyde and amine fragments. The nature of the bands of electronic absorption spectra in DMSO solutions was interpreted using the results of quantum chem- ical calculations in the time-dependent density functional theory (TD-DFT) approximation. The light emission performance of the complexes in organic light-emitting diodes was investigated. The electroluminescence (EL) spectra maxima of all three complexes are located in the visible range from 470 to 550 nm. The absence of additional spectral maxima or shoulders in the EL bands means that neither exciplex nor excimer states form, and the observed EL bands are due to the intrinsic radiation of the zinc(II) complexes. EQEs were measured for these three complexes. The maximum value, close to 3%,CorrespondenceAnatolii S. Burlov, Institute of Physical and Organic Chemistry, Southern Federal University, Stachki Ave. 194/2, 344090 Rostov-on-Don, Russian Federation. Email: asburlov@ipoc.sfedu.ruValery G. Vlasenko, Institute of Physics, Southern Federal University, Stachki Ave. 194, 344090 Rostov-on-Don, Russian Federation.Email: vgvlasenko@sfedu.ruFunding informationMinistry of Science and Higher Education of the Russian Federation, Grant/Award Number: AAAA-A19-119020890025-3; Ministry of Education and Science of the Russian Federation, Grant/Award Number: 0852-2020-0031Appl Organomet Chem. 2020;e6107. https://doi.org/10.1002/aoc.6107wileyonlinelibrary.com/journal/aoc© 2020 John Wiley & Sons, Ltd.1 of 17 2 of 17BURLOV ET AL. was obtained in the case of a structure with a maximal brightness of 8000 cd m−2 at 17 V.KEYWORDSelectroluminescence, OLED, photoluminescence, Schiff base, zinc complexes
- Добавил в систему: Мальцев Евгений Иванович