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Order vs. disorder in puninite morphotropic series: synthesis and crystal structures of Cs4Cu7+xO3+x(SO4)6 with x = 0 and x = 0.2. / Борисов, Артем Сергеевич; Сийдра, Олег Иоханнесович; Пимшин, Иван Дмитриевич; Чаркин, Дмитрий Олегович; Хольцхайд, Астрид.
в: Structural Chemistry, 08.02.2025.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Order vs. disorder in puninite morphotropic series: synthesis and crystal structures of Cs4Cu7+xO3+x(SO4)6 with x = 0 and x = 0.2.
AU - Борисов, Артем Сергеевич
AU - Сийдра, Олег Иоханнесович
AU - Пимшин, Иван Дмитриевич
AU - Чаркин, Дмитрий Олегович
AU - Хольцхайд, Астрид
PY - 2025/2/8
Y1 - 2025/2/8
N2 - Two new cesium copper oxosulfates, Cs4Cu7O3(SO4)6 (1) and Cs4Cu7O3(SO4)6[Cu0.2O0.2] (2) which can be considered as representatives of the Cs4Cu7+xO3+x(SO4)6 series with x = 0 and x = 0.2, were prepared in evacuated silica tubes. Both compounds are triclinic, P1¯ and contain complex polynuclear ensembles of edge-sharing OCu4 tetrahedra decorated by sulfate anions; these building units are arranged into pseudo-layers. The partially disordered Cs+ cations fill the interstices in the structure. The overall topology of the two structures is very similar; however, in 2, the copper-oxide ensembles are additionally stitched by weakly occupied Cu–O fragments into pseudo-chains; this also results in essential disorder in the Cs sublattice. Both structures have very much in common with those of the puninite-euchlorine-fedotovite morphotropic series. We analyze the crystal chemical trends in this morphotropic series.
AB - Two new cesium copper oxosulfates, Cs4Cu7O3(SO4)6 (1) and Cs4Cu7O3(SO4)6[Cu0.2O0.2] (2) which can be considered as representatives of the Cs4Cu7+xO3+x(SO4)6 series with x = 0 and x = 0.2, were prepared in evacuated silica tubes. Both compounds are triclinic, P1¯ and contain complex polynuclear ensembles of edge-sharing OCu4 tetrahedra decorated by sulfate anions; these building units are arranged into pseudo-layers. The partially disordered Cs+ cations fill the interstices in the structure. The overall topology of the two structures is very similar; however, in 2, the copper-oxide ensembles are additionally stitched by weakly occupied Cu–O fragments into pseudo-chains; this also results in essential disorder in the Cs sublattice. Both structures have very much in common with those of the puninite-euchlorine-fedotovite morphotropic series. We analyze the crystal chemical trends in this morphotropic series.
KW - Cesium
KW - Copper sulfate
KW - Polynuclear ensembles
KW - Puninite
KW - Structural topology
UR - https://link.springer.com/article/10.1007/s11224-025-02450-5
UR - https://www.mendeley.com/catalogue/03b253b8-c7ef-3cdd-b556-60a8b084f831/
U2 - 10.1007/s11224-025-02450-5
DO - 10.1007/s11224-025-02450-5
M3 - Article
JO - Structural Chemistry
JF - Structural Chemistry
SN - 1040-0400
ER -
ID: 132248766