Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Morphotropism in fumarolic mineral-related anhydrous sulfates : novel representatives in A +2M 2+(SO4)2and A +2M 2+2(SO4)3series. / Siidra, Oleg I.; Nekrasova, Diana; Blatova, Olga; Colmont, Marie; Mentre, Olivier; Charkin, Dmitri.
в: Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, Том 78, № Pt 2, 01.04.2022, стр. 153-161.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Morphotropism in fumarolic mineral-related anhydrous sulfates
T2 - novel representatives in A +2M 2+(SO4)2and A +2M 2+2(SO4)3series
AU - Siidra, Oleg I.
AU - Nekrasova, Diana
AU - Blatova, Olga
AU - Colmont, Marie
AU - Mentre, Olivier
AU - Charkin, Dmitri
N1 - Publisher Copyright: © 2022 International Union of Crystallography. All rights reserved.
PY - 2022/4/1
Y1 - 2022/4/1
N2 - The discovery of numerous endemic anhydrous sulfate minerals in fumaroles of the Tolbachik volcano (Kamchatka, Russia) has revived interest in the whole family of anhydrous sulfates. Herein is reported the crystal structure of Cs2Cu(SO4)2which adds important data on the 'final' contributor with the largest A +cation to the A2[Cu(SO4)2] morphotropic series (A = Na, K, Rb, Cs), the 'initial' structurally characterized representative of this family being saranchinaite Na2Cu(SO4)2. With increasing ionic radius of the alkali metal cation(s), embedded in the [Cu(SO4)2]2-framework, symmetry-breaking transformations occur. Cs2Cu(SO4)2, which is here designated as the ϵ-phase, has a layered structure. Cs2Co2(SO4)3is a new representative of another morphotropic series of the orthorhombic A 2[M 2+2(SO4)3] family, being also the first anhydrous Cs-Co sulfate. Structural relationships in A +2 M 2+(SO4)2and A +2 M 2+2(SO4)3morphotropic series are discussed in detail.
AB - The discovery of numerous endemic anhydrous sulfate minerals in fumaroles of the Tolbachik volcano (Kamchatka, Russia) has revived interest in the whole family of anhydrous sulfates. Herein is reported the crystal structure of Cs2Cu(SO4)2which adds important data on the 'final' contributor with the largest A +cation to the A2[Cu(SO4)2] morphotropic series (A = Na, K, Rb, Cs), the 'initial' structurally characterized representative of this family being saranchinaite Na2Cu(SO4)2. With increasing ionic radius of the alkali metal cation(s), embedded in the [Cu(SO4)2]2-framework, symmetry-breaking transformations occur. Cs2Cu(SO4)2, which is here designated as the ϵ-phase, has a layered structure. Cs2Co2(SO4)3is a new representative of another morphotropic series of the orthorhombic A 2[M 2+2(SO4)3] family, being also the first anhydrous Cs-Co sulfate. Structural relationships in A +2 M 2+(SO4)2and A +2 M 2+2(SO4)3morphotropic series are discussed in detail.
KW - anhydrous sulfates
KW - caesium
KW - cobalt
KW - copper
KW - crystal structure
KW - fumarolic minerals
KW - morphotropism
KW - Minerals/chemistry
KW - Sulfates/chemistry
KW - Metals, Alkali
KW - Russia
UR - http://www.scopus.com/inward/record.url?scp=85128080089&partnerID=8YFLogxK
U2 - 10.1107/s2052520622000919
DO - 10.1107/s2052520622000919
M3 - Article
C2 - 35411854
AN - SCOPUS:85128080089
VL - 78
SP - 153
EP - 161
JO - Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
JF - Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
SN - 2052-5192
IS - Pt 2
ER -
ID: 95473282