Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
High-pressure synthesis and crystal structure of non-centrosymmetric K2Ca3(CO3)4. / Rashchenko, Sergey V.; Shatskiy, Anton F.; Ignatov, Mark A. и др.
в: CrystEngComm, Том 23, № 38, 14.10.2021, стр. 6675-6681.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - High-pressure synthesis and crystal structure of non-centrosymmetric K2Ca3(CO3)4
AU - Rashchenko, Sergey V.
AU - Shatskiy, Anton F.
AU - Ignatov, Mark A.
AU - Arefiev, Anton V.
AU - Litasov, Konstantin D.
N1 - Funding Information: The reported study was funded by RFBR and FWF according to the research project #21-55-14001. 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. The authors also thank two anonymous reviewers for their constructive criticism. Funding Information: The reported study was funded by RFBR and FWF according to the research project #21-55-14001. 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. The authors also thank two anonymous reviewers for their constructive criticism. Publisher Copyright: © The Royal Society of Chemistry 2021.
PY - 2021/10/14
Y1 - 2021/10/14
N2 - A new non-centrosymmetric K2Ca3(CO3)4crystal (P212121,a= 7.3905(2) Å,b= 8.8156(3) Å,c= 16.4817(5) Å) was synthesized in a multi-anvil press at a pressure of 3 GPa and temperature of 975 °C. The compound is homeotypic to A3B2(BO3)4(A = Ca, Sr, Ba; B = REE, Y, Bi) orthoborates with thePnmasymmetry, but is characterized by the non-centrosymmetric arrangement of (CO3) anions within thePnma-pseudosymmetric cation sublattice. K2Ca3(CO3)4represents a pure carbonate member of the extended M5(XO3)4(X = B, C, B/C) structural type, which also includes A3B2(BO3)4orthoborates as well as recently synthesized mixed orthoborate-carbonates of Ba and Sr. Crystallochemical considerations suggest that cation-substituted (REE, Cs, Sr, and Ba) derivatives of K2Ca3(CO3)4can probably be synthesized at significantly lower pressures than 3 GPa, which is required to stabilize the compound itself.
AB - A new non-centrosymmetric K2Ca3(CO3)4crystal (P212121,a= 7.3905(2) Å,b= 8.8156(3) Å,c= 16.4817(5) Å) was synthesized in a multi-anvil press at a pressure of 3 GPa and temperature of 975 °C. The compound is homeotypic to A3B2(BO3)4(A = Ca, Sr, Ba; B = REE, Y, Bi) orthoborates with thePnmasymmetry, but is characterized by the non-centrosymmetric arrangement of (CO3) anions within thePnma-pseudosymmetric cation sublattice. K2Ca3(CO3)4represents a pure carbonate member of the extended M5(XO3)4(X = B, C, B/C) structural type, which also includes A3B2(BO3)4orthoborates as well as recently synthesized mixed orthoborate-carbonates of Ba and Sr. Crystallochemical considerations suggest that cation-substituted (REE, Cs, Sr, and Ba) derivatives of K2Ca3(CO3)4can probably be synthesized at significantly lower pressures than 3 GPa, which is required to stabilize the compound itself.
UR - http://www.scopus.com/inward/record.url?scp=85116689200&partnerID=8YFLogxK
U2 - 10.1039/d1ce00882j
DO - 10.1039/d1ce00882j
M3 - Article
AN - SCOPUS:85116689200
VL - 23
SP - 6675
EP - 6681
JO - CrystEngComm
JF - CrystEngComm
SN - 1466-8033
IS - 38
ER -
ID: 34409708