An unexpected imidazole-induced porphyrinylphosphonate-based MOF-to-HOF structural transformation leading to the enhancement of proton conductivity

Zhigileva, E.A.; Enakieva, Y.Y.; Chernyshev, V.V.; Senchikhin, I.N.; Demina, L.I.; Martynov, A.G.; Stenina, I.A.; Yaroslavtsev, A.B.; Gorbunova, Y.G.; Tsivadze, A.Y.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 октября 2024 г.

Авторы: Zhigileva Ekaterina A., Enakieva Yulia Yu, Chernyshev Vladimir V., Senchikhin Ivan N., Demina Liudmila I., Martynov Alexander G., Stenina Irina A., Yaroslavtsev Andrey B., Gorbunova Yulia G., Tsivadze Aslan Yu
Журнал: Dalton Transactions
Том: 53
Номер: 39
Год издания: 2024
Издательство: Royal Society of Chemistry
Местоположение издательства: United Kingdom
Первая страница: 16345
Последняя страница: 16354
DOI: 10.1039/d4dt02143f
Аннотация: Post-synthetic modification of proton-conducting metal–organic frameworks (MOFs) by loading small molecules capable of generating protons into pores is an efficient approach for developing a new type of material with improved ionic conductivity. Herein, the synthesis, characterization and proton conductivity of a novel electroneutral MOF based on palladium(II) meso-tetrakis(4-(phosphonatophenyl))porphyrinate, IPCE-1Pd, are reported. The exposure of the obtained framework to imidazole by the diffusion vapor method has surprisingly led to its complete crystal-to-crystal MOF-to-HOF transformation, resulting in the formation of a novel hydrogen-bonded organic framework (HOF) IPCE-1Pd_Im, which is the first example of such kind of structural change among all known MOFs. This modification has led to an almost 25-fold increase in the proton conductivity in comparison with the pristine MOF, reaching up to 6.54 × 10−3 S cm−1 at 85 °C and 95% relative humidity, which is one of the highest values among all known porphyrin-based HOFs.
Добавил в систему: Чернышев Владимир Васильевич

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An unexpected imidazole-induced porphyrinylphosphonate-based MOF-to-HOF structural transformation leading to the enhancement of proton conductivityстатья

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