Comparative X-Ray Absorption Analysis of the Spectrum of Vacant Electronic States in Cobalt and Nickel Tetraphenylporphyrin Complexes Научная публикация
Журнал |
Physics of the Solid State
ISSN: 1063-7834 , E-ISSN: 1090-6460 |
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Вых. Данные | Год: 2018, Том: 60, Номер: 3, Страницы: 581-591 Страниц : 11 DOI: 10.1134/s1063783418030307 | ||||||||||||||
Ключевые слова | SPECTROSCOPY; PORPHYRINS; METALLOPORPHYRINS; PHOTOELECTRON; EXCITATIONS; TRANSITION; ANALOGS; SURFACE; WIRES; NIP | ||||||||||||||
Авторы |
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Организации |
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Информация о финансировании (2)
1 | Российский фонд фундаментальных исследований | 15-02-06369 (115013070048) |
2 | Helmholtz-Centre Berlin for Materials and Energy BESSY |
Реферат:
The energy distributions and the properties of the lower vacant electronic states in cobalt and nickel tetraphenylporphyrin complexes CoTPP and NiTPP are studied by X-ray absorption spectroscopy. Quasimolecular analysis of the experimental absorption spectra measured in the region of the 2p and 1s ionization thresholds of complexing metal atoms, as well as the 1s thresholds of ligand atoms (nitrogen and carbon), is based on the comparison of the corresponding spectra with each other and with the spectra of the simplest nickel porphyrin NiP. It has been established that, despite a general similarity of the spectra of nitrogen and carbon in CoTPP and NiTPP, the fine structure of the 2p and 1s absorption spectra of cobalt and nickel atoms are radically different. The observed differences in the spectra of cobalt and nickel are associated with the features of the energy distribution of vacant 3d electron states. The presence in CoTPP of the partially filled valence 3db2g molecular orbital (MO) results in the appearance in the cobalt spectra of a low-energy band, which is absent in the spectrum of nickel in NiTPP and leads to a doublet structure of transitions to b1g and e g MOs due to the exchange interaction between 3d electrons in partially filled 3db2g and 3db1g or 3de g MOs. The spectrum of vacant states in CoTPP differs from that in NiTPP also due to the smaller energy distance between 3db1g and e g MOs and the different positions of nonbonding MOs with the C2p character of the porphine ligand.
Библиографическая ссылка:
Svirskiy G.I.
, Generalov A.V.
, Klyushin A.Y.
, Simonov K.A.
, Krasnikov S.A.
, Vinogradov N.A.
, Trigub A.L.
, Zubavichus Y.V.
, Preobrazhenski A.B.
, Vinogradov A.S.
Comparative X-Ray Absorption Analysis of the Spectrum of Vacant Electronic States in Cobalt and Nickel Tetraphenylporphyrin Complexes
Physics of the Solid State. 2018. V.60. N3. P.581-591. DOI: 10.1134/s1063783418030307 WOS Scopus РИНЦ
Comparative X-Ray Absorption Analysis of the Spectrum of Vacant Electronic States in Cobalt and Nickel Tetraphenylporphyrin Complexes
Physics of the Solid State. 2018. V.60. N3. P.581-591. DOI: 10.1134/s1063783418030307 WOS Scopus РИНЦ
Оригинальная:
Свирский Г.И.
, Генералов А.В.
, Клюшин А.Ю.
, Симонов К.А.
, Красников С.А.
, Виноградов Н.А.
, Тригуб А.Л.
, Зубавичус Я.В.
, Преображенский А.Б.
, Виноградов А.С.
Сравнительное рентгеноабсорбционное исследование спектра свободных электронных состояний в комплексах тетрафенилпорфиринов кобальта и никеля
Физика твердого тела. 2018. Т.60. №3. С.574-584. DOI: 10.21883/FTT.2018.03.45564.217 РИНЦ
Сравнительное рентгеноабсорбционное исследование спектра свободных электронных состояний в комплексах тетрафенилпорфиринов кобальта и никеля
Физика твердого тела. 2018. Т.60. №3. С.574-584. DOI: 10.21883/FTT.2018.03.45564.217 РИНЦ
Файлы:
Полный текст от издателя
Даты:
Поступила в редакцию: | 3 июл. 2017 г. |
Опубликована в печати: | 1 мар. 2018 г. |
Опубликована online: | 16 мар. 2018 г. |
Идентификаторы БД:
Web of science | WOS:000427598800027 |
Scopus | 2-s2.0-85044192702 |
РИНЦ | 35514667 |
Chemical Abstracts | 2018:511114 |
Chemical Abstracts (print) | 170:22747 |
OpenAlex | W2796209762 |