Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System
Andrey A. Petrov
1
,
Sergey Fateev
1
,
Sergey A Fateev
1
,
Victor N. Khrustalev
4, 5
,
Irina A. Zvereva
6
,
Andrey Petrov
6
,
Eugene Goodilin
1, 7
,
Eugene A. Goodilin
1, 7
,
Alexey Tarasov
1, 7
Publication type: Journal Article
Publication date: 2019-09-12
scimago Q1
wos Q1
SJR: 1.394
CiteScore: 8.7
Impact factor: 4.6
ISSN: 19487185
PubMed ID:
31510748
Physical and Theoretical Chemistry
General Materials Science
Abstract
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 a MAI-I2 system and built up a first phase diagram in a wide temperature and composition ranges using data of differential scanning calorimetry, single-crystal X-ray diffraction, and visual thermal analysis. The phase diagram has been found to differ drastically from any related systems owing to the unique proneness of methylammonium towards forming a diversity of polyiodides with complicated crystal structures, namely MAI2, MAI2.67, MAI4, MAI5.5, found in this system for the first time. The performed DFT calculations revealed the crucial role of entropy contributing to the formation of higher methylammonium polyiodides in a good agreement with experimental data.
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Citations from 2025:
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(16%)
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Petrov A. A. et al. Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System // Journal of Physical Chemistry Letters. 2019. Vol. 10. No. 19. pp. 5776-5780.
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Petrov A. A., Fateev S., Fateev S. A., Zubavichus Y. V., Dorovatovskii P., Khrustalev V. N., Zvereva I. A., Petrov A., Goodilin E., Goodilin E. A., Tarasov A. Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System // Journal of Physical Chemistry Letters. 2019. Vol. 10. No. 19. pp. 5776-5780.
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TY - JOUR
DO - 10.1021/acs.jpclett.9b02360
UR - https://pubs.acs.org/doi/10.1021/acs.jpclett.9b02360
TI - Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System
T2 - Journal of Physical Chemistry Letters
AU - Petrov, Andrey A.
AU - Fateev, Sergey
AU - Fateev, Sergey A
AU - Zubavichus, Yan V.
AU - Dorovatovskii, Pavel
AU - Khrustalev, Victor N.
AU - Zvereva, Irina A.
AU - Petrov, Andrey
AU - Goodilin, Eugene
AU - Goodilin, Eugene A.
AU - Tarasov, Alexey
PY - 2019
DA - 2019/09/12
PB - American Chemical Society (ACS)
SP - 5776-5780
IS - 19
VL - 10
PMID - 31510748
SN - 1948-7185
ER -
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@article{2019_Petrov,
author = {Andrey A. Petrov and Sergey Fateev and Sergey A Fateev and Yan V. Zubavichus and Pavel Dorovatovskii and Victor N. Khrustalev and Irina A. Zvereva and Andrey Petrov and Eugene Goodilin and Eugene A. Goodilin and Alexey Tarasov},
title = {Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System},
journal = {Journal of Physical Chemistry Letters},
year = {2019},
volume = {10},
publisher = {American Chemical Society (ACS)},
month = {sep},
url = {https://pubs.acs.org/doi/10.1021/acs.jpclett.9b02360},
number = {19},
pages = {5776--5780},
doi = {10.1021/acs.jpclett.9b02360}
}
Cite this
MLA
Copy
Petrov, Andrey A., et al. “Methylammonium Polyiodides: Remarkable Phase Diversity of the Simplest and Low-Melting Alkylammonium Polyiodide System.” Journal of Physical Chemistry Letters, vol. 10, no. 19, Sep. 2019, pp. 5776-5780. https://pubs.acs.org/doi/10.1021/acs.jpclett.9b02360.