Research output: Contribution to journal › Article › peer-review
Structural response of diiodobutenyl-bis-thioquinolinium triiodide to high pressure and theoretical study of mechanical properties. / Yushina, I. D.; Matveychuk, Yu V.; Bogdanov, N. E. et al.
In: CrystEngComm, Vol. 27, No. 38, 18.08.2025, p. 6283-6294.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Structural response of diiodobutenyl-bis-thioquinolinium triiodide to high pressure and theoretical study of mechanical properties
AU - Yushina, I. D.
AU - Matveychuk, Yu V.
AU - Bogdanov, N. E.
AU - Adichtchev, S. V.
AU - Krylov, A. S.
AU - Stash, A. I.
AU - Boldyreva, E. V.
AU - Bartashevich, E. V.
PY - 2025/8/18
Y1 - 2025/8/18
N2 - The response of the diiodobutenyl-bis-thioquinolinium triiodide crystal structure to hydrostatic compression from 1 atm to 4 GPa and mechanical stress was studied using experimental techniques (Raman and Brillouin spectroscopy, single-crystal X-ray diffraction) and periodic DFT modeling. A phase transformation above 2.5(1) GPa manifested itself by abrupt changes in the unit cell parameters and non-merohedral twinning. The changes in the band positions in the low-wavenumber region of Raman spectra were attributed to a change in the bridging hydrogen position in the N⋯H⋯N fragment and to the changes in the anion. The DFT modeling of the crystal structure on compression revealed the changes in the structural fragments that can explain why a high-pressure phase transition takes place.
AB - The response of the diiodobutenyl-bis-thioquinolinium triiodide crystal structure to hydrostatic compression from 1 atm to 4 GPa and mechanical stress was studied using experimental techniques (Raman and Brillouin spectroscopy, single-crystal X-ray diffraction) and periodic DFT modeling. A phase transformation above 2.5(1) GPa manifested itself by abrupt changes in the unit cell parameters and non-merohedral twinning. The changes in the band positions in the low-wavenumber region of Raman spectra were attributed to a change in the bridging hydrogen position in the N⋯H⋯N fragment and to the changes in the anion. The DFT modeling of the crystal structure on compression revealed the changes in the structural fragments that can explain why a high-pressure phase transition takes place.
UR - https://www.mendeley.com/catalogue/850f21de-7c38-3b71-b530-b4dfadc04f67/
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105017376368&origin=inward
U2 - 10.1039/d5ce00638d
DO - 10.1039/d5ce00638d
M3 - Article
VL - 27
SP - 6283
EP - 6294
JO - CrystEngComm
JF - CrystEngComm
SN - 1466-8033
IS - 38
ER -
ID: 70299738