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Spin Crossover in Nickel(II) Tetraphenylporphyrinate via Forced Axial Coordination at the Air/Water Interfaceстатья
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 октября 2021 г.
- Авторы: Shokurov Alexander V., Kutsybala Daria S., Kroitor Andrey P., Dmitrienko Alexander A., Martynov Alexander G., Enakieva Yulia Yu, Tsivadze Aslan Yu, Selektor Sofiya L., Gorbunova Yulia G.
- Журнал: Molecules
- Том: 26
- Номер: 14
- Год издания: 2021
- Издательство: MDPI
- Местоположение издательства: Basel, Switzerland
- Номер статьи: 4155
- DOI: 10.3390/molecules26144155
- Аннотация: Coordination-induced spin crossover (CISCO) in nickel(II) porphyrinates is an intriguing phenomenon that is interesting from both fundamental and practical standpoints. However, in most cases, realization of this effect requires extensive synthetic protocols or extreme concentrations of extra-ligands. Herein we show that CISCO effect can be prompted for the commonly available nickel(II) tetraphenylporphyrinate, NiTPP, upon deposition of this complex at the air/water interface together with a ruthenium(II) phthalocyaninate, CRPcRu(pyz)2, bearing two axial pyrazine ligands. The latter was used as a molecular guiderail to align Ni···Ru···Ni metal centers for pyrazine coordination upon lateral compression of the system, which helps bring the two macrocycles closer together and forces the formation of Ni–pyz bonds. The fact of Ni(II) porphyrinate switching from low- to high-spin state upon acquiring additional ligands can be conveniently observed in situ via reflectionabsorption UV-vis spectroscopy. The reversible nature of this interaction allows for dissociation of Ni–pyz bonds, and thus, change of nickel cation spin state, upon expansion of the monolayer.
- Добавил в систему: Селектор София Львовна