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Mechanically Responsive Crystals: Analysis of Macroscopic Strain Reveals “Hidden” Processes Научная публикация

Журнал The Journal of Physical Chemistry A
ISSN: 1089-5639 , E-ISSN: 1520-5215
Вых. Данные Год: 2020, Том: 124, Номер: 2, Страницы: 300-310 Страниц : 11 DOI: 10.1021/acs.jpca.9b10365
Ключевые слова DYNAMIC MOLECULAR-CRYSTALS; PHASE-TRANSITION; BEHAVIOR; MOTION
Авторы Desta Israel Tilahun 1 , Chizhik Stanislav A. 2,3 , Sidelnikov Anatoli A. 2,3 , Karothu Durga Prasad 1 , Boldyreva Elena V. 3,4 , Naumov Pance 1
Организации
1 New York University Abu Dhabi, P.O. Box 129188, Abu Dhabi, United Arab Emirates
2 Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of Russian Academy of Sciences, ul. Kutateladze, 18, Novosibirsk 630128, Russia
3 Novosibirsk State University, ul. Pirogova, 2, Novosibirsk 630090, Russia
4 Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences

Информация о финансировании (2)

1 Министерство науки и высшего образования Российской Федерации (с 15 мая 2018) 0239-2019-0003
2 New York University Abu Dhabi

Реферат: Mechanical response of single crystals to light, temperature and/or force—an emerging platform for the development of new organic actuating materials for soft robotics—has recently been quantitatively described by a general and robust mathematical model (Chem. Rev. 2015, 115, 12440–12490). The model can be used to extract accurate activation energies and kinetics of solid-state chemical reactions simply by tracking the time-dependent bending of the crystal. Here we illustrate that deviations of the macroscopic strain in the crystal from that predicted by the model reveals existence of additional, "hidden" chemical or physical processes, such as sustained structural relaxation between the chemical transformation and the resulting macroscopic deformation of the crystal. This is illustrated with photobendable single crystals of 4-hydroxy-2-(2-pyridinylmethylene)hydrazide, a photochemical switch that undergoes E-to-Z isomerization. An irreversible chemical side reaction in these crystals results in plastic relaxation and partial amorphization that are observed as poor correlation between the transformation extent and the induced strains. The occurrence of these processes was independently confirmed by X-ray diffraction and differential scanning calorimetry. An extended mathematical model is proposed to account for this complex mechanical response.
Библиографическая ссылка: Desta I.T. , Chizhik S.A. , Sidelnikov A.A. , Karothu D.P. , Boldyreva E.V. , Naumov P.
Mechanically Responsive Crystals: Analysis of Macroscopic Strain Reveals “Hidden” Processes
The Journal of Physical Chemistry A. 2020. V.124. N2. P.300-310. DOI: 10.1021/acs.jpca.9b10365 WOS Scopus РИНЦ CAPlus PMID OpenAlex
Даты:
Поступила в редакцию: 4 нояб. 2019 г.
Принята к публикации: 10 дек. 2019 г.
Опубликована online: 10 дек. 2019 г.
Опубликована в печати: 16 янв. 2020 г.
Идентификаторы БД:
Web of science: WOS:000508468500006
Scopus: 2-s2.0-85077945015
РИНЦ: 43226765
Chemical Abstracts: 2019:2372610
PMID (PubMed): 31821761
OpenAlex: W2995952622
Цитирование в БД:
БД Цитирований
Scopus 35
Web of science 34
РИНЦ 28
OpenAlex 36
Альметрики: