Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Symmetry control of cation substitution in ‘antizeolite’ borates. / Rashchenko, Sergey V.; Davydov, Alexey; Sagatov, Nursultan E. и др.
в: Materials Research Bulletin, Том 167, 112398, 11.2023.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Symmetry control of cation substitution in ‘antizeolite’ borates
AU - Rashchenko, Sergey V.
AU - Davydov, Alexey
AU - Sagatov, Nursultan E.
AU - Podborodnikov, Ivan V.
AU - Arkhipov, Sergey G.
AU - Romanenko, Alexandr V.
AU - Bekker, Tatyana B.
N1 - Acknowledgments: This work was supported by the Russian Science Foundation, grant № 21-19-00097, https://www.rscf.ru/project/21-19-00097/. The SEM and EDS studies were performed in the Analytical Center for Multi-element and Isotope Research SB RAS. The XRD study was done using the equipment of Research and Education Centre “Molecular Design and Ecologically Safe Technologies” at Novosibirsk State University.
PY - 2023/11
Y1 - 2023/11
N2 - ‘Antizeolite’ borates are a family of inorganic compounds with structure based on fixed (pseudo)tetragonal [Ba12(BO3)6]6+ sublattice, and various anionic clusters occupying ‘channels’ in the sublattice. An ability to host different anionic clusters provides a convenient way to tune such functional properties of materials based of ‘antizeolite’ borates as dichroism, luminescence etc. We demonstrated the dependence of extent of Sr2+→Ba2+ substitution in the cationic sublattice of antizeolite barium borates on the symmetry of initial compound. The latter is controlled by ‘guest’ anionic clusters in the channels of sublattice. In the case of initially orthorhombic [Ba12-xSrx(BO3)6](BO3)2 solid solution, the structure adapts to the increase in Sr2+ content (up to Sr/(Ba+Sr) ratio of at least 39 wt. %) by tetragonalization of the sublattice. In contrast, in tetragonal [(Ba1-xSrx)12(BO3)6](BO3)[LiF4] solid solution another structural mechanism of Sr2+ accommodation takes place, which results in the (2a,2c) modulation and is limited by maximum Sr/(Ba+Sr) ratio of 10-20 wt. %.
AB - ‘Antizeolite’ borates are a family of inorganic compounds with structure based on fixed (pseudo)tetragonal [Ba12(BO3)6]6+ sublattice, and various anionic clusters occupying ‘channels’ in the sublattice. An ability to host different anionic clusters provides a convenient way to tune such functional properties of materials based of ‘antizeolite’ borates as dichroism, luminescence etc. We demonstrated the dependence of extent of Sr2+→Ba2+ substitution in the cationic sublattice of antizeolite barium borates on the symmetry of initial compound. The latter is controlled by ‘guest’ anionic clusters in the channels of sublattice. In the case of initially orthorhombic [Ba12-xSrx(BO3)6](BO3)2 solid solution, the structure adapts to the increase in Sr2+ content (up to Sr/(Ba+Sr) ratio of at least 39 wt. %) by tetragonalization of the sublattice. In contrast, in tetragonal [(Ba1-xSrx)12(BO3)6](BO3)[LiF4] solid solution another structural mechanism of Sr2+ accommodation takes place, which results in the (2a,2c) modulation and is limited by maximum Sr/(Ba+Sr) ratio of 10-20 wt. %.
KW - Antizeolite borates
KW - Cation substitution
KW - Modulation
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85162085834&origin=inward&txGid=bcced48342704efafb5099b231da1316
UR - https://www.mendeley.com/catalogue/ba25276a-6125-3c60-8489-fcf5520b9801/
U2 - 10.1016/j.materresbull.2023.112398
DO - 10.1016/j.materresbull.2023.112398
M3 - Article
VL - 167
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
M1 - 112398
ER -
ID: 53935837