Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System Научная публикация
Журнал |
Journal of Physical Chemistry Letters
ISSN: 1948-7185 |
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Вых. Данные | Год: 2019, Том: 10, Номер: 19, Страницы: 5776-5780 Страниц : 5 DOI: 10.1021/acs.jpclett.9b02360 | ||||||||||||||
Ключевые слова | IONIC LIQUID-CRYSTAL; IODINE | ||||||||||||||
Авторы |
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Организации |
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Информация о финансировании (1)
1 | Российский научный фонд | 18-73-10224 (АААА-А18-118120490094-1) |
Реферат:
Newly discovered methylammonium polyiodides (MAIx) are unique precursors for innovative solvent-free technologies in perovskite photovoltaics because MAIx are liquids at room temperature and demonstrate high chemical reactivity. We investigated the features of an MAI-I2 system and built up a first phase diagram in wide temperature and composition ranges using data from differential scanning calorimetry, single-crystal X-ray diffraction, and visual thermal analysis. The phase diagram has been found to differ drastically from that of any related systems owing to the unique propensity of methylammonium toward forming a diversity of polyiodides with complicated crystal structures, namely, MAI2, MAI2.67, MAI4, and MAI5.5, found in this system for the first time. The performed density functional theory calculations revealed the crucial role of entropy contributing to the formation of higher methylammonium polyiodides, in good agreement with experimental data.
Библиографическая ссылка:
Petrov A.A.
, Fateev S.A.
, Zubavichus Y.V.
, Dorovatovskii P.V.
, Khrustalev V.N.
, Zvereva I.A.
, Petrov A.V.
, Goodilin E.A.
, Tarasov A.B.
Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System
Journal of Physical Chemistry Letters. 2019. V.10. N19. P.5776-5780. DOI: 10.1021/acs.jpclett.9b02360 WOS Scopus РИНЦ
Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System
Journal of Physical Chemistry Letters. 2019. V.10. N19. P.5776-5780. DOI: 10.1021/acs.jpclett.9b02360 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: | 12 авг. 2019 г. |
Принята к публикации: | 12 сент. 2019 г. |
Опубликована online: | 12 сент. 2019 г. |
Опубликована в печати: | 3 окт. 2019 г. |
Идентификаторы БД:
Web of science | WOS:000489189500014 |
Scopus | 2-s2.0-85072904254 |
РИНЦ | 41692034 |
Chemical Abstracts | 2019:1761207 |
Chemical Abstracts (print) | 171:385077 |
PMID (PubMed) | 31510748 |
OpenAlex | W2972744404 |