Research output: Contribution to journal › Article › peer-review
Copper–lead selenite bromides : a new large family of compounds partly having Cu2+ substructures derivable from kagome nets. / Siidra, Oleg I.; Kozin, Michael S.; Depmeier, Wulf; Kayukov, Roman A.; Kovrugin, Vadim M.
In: Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials, Vol. 74, No. 6, 01.12.2018, p. 712-724.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Copper–lead selenite bromides
T2 - a new large family of compounds partly having Cu2+ substructures derivable from kagome nets
AU - Siidra, Oleg I.
AU - Kozin, Michael S.
AU - Depmeier, Wulf
AU - Kayukov, Roman A.
AU - Kovrugin, Vadim M.
PY - 2018/12/1
Y1 - 2018/12/1
N2 - Extensive experiments in the Pb–Cu–Se–O–Br system at 400°C yielded single crystals of nine new compounds (Cu2+Pb6(SeO3)4Br6, Cu2+Pb2(SeO3)2Br2, Cu2+ 3Pb2.4(SeO3)5Br0.8, Cu2+ 2Pb(SeO3)2Br2, Cu2+ 4Pb(SeO3)4Br2, [Cu2+ 9Pb2O4](Cu+Br2)(SeO3)4Br5, [Cu2+ 7PbO3](Cu+Br)0.35(SeO3)3Br4, [Cu2+ 8Pb2O4](Cu+Br)1.5(SeO3)4Br4, [Cu2+ 6Pb3O4](Cu+Pb1.27Br3.54)(SeO3)4Br2), all but one exhibiting new complex layered or open-framework architectures, organized via the host–guest principle. Five of these structures contain only bivalent copper: three with well ordered 2D structures and completely filled atomic positions, two structures have 3D frameworks. The four remaining compounds contain both, Cu2+ and Cu+, and comprise layers formed by edge- and vertex-sharing of oxocentered OCu2+ 4–nPbn tetrahedra decorated with SeO3 2− and Br− anions. The interlayer spaces are filled by partially disordered Cu+–Br and Pb–Br associations. One remarkable feature of the latter group of compounds is the presence of tetrahedral (Cu2+)4 complexes with arrangements derivable from a kagome network.
AB - Extensive experiments in the Pb–Cu–Se–O–Br system at 400°C yielded single crystals of nine new compounds (Cu2+Pb6(SeO3)4Br6, Cu2+Pb2(SeO3)2Br2, Cu2+ 3Pb2.4(SeO3)5Br0.8, Cu2+ 2Pb(SeO3)2Br2, Cu2+ 4Pb(SeO3)4Br2, [Cu2+ 9Pb2O4](Cu+Br2)(SeO3)4Br5, [Cu2+ 7PbO3](Cu+Br)0.35(SeO3)3Br4, [Cu2+ 8Pb2O4](Cu+Br)1.5(SeO3)4Br4, [Cu2+ 6Pb3O4](Cu+Pb1.27Br3.54)(SeO3)4Br2), all but one exhibiting new complex layered or open-framework architectures, organized via the host–guest principle. Five of these structures contain only bivalent copper: three with well ordered 2D structures and completely filled atomic positions, two structures have 3D frameworks. The four remaining compounds contain both, Cu2+ and Cu+, and comprise layers formed by edge- and vertex-sharing of oxocentered OCu2+ 4–nPbn tetrahedra decorated with SeO3 2− and Br− anions. The interlayer spaces are filled by partially disordered Cu+–Br and Pb–Br associations. One remarkable feature of the latter group of compounds is the presence of tetrahedral (Cu2+)4 complexes with arrangements derivable from a kagome network.
KW - CHEMICAL-VAPOR TRANSPORT
KW - CHEMISTRY
KW - CHLORIDES
KW - HALIDES
KW - II. CRYSTAL-STRUCTURE
KW - IONIC-CONDUCTIVITY
KW - MAGNETIC-PROPERTIES
KW - OXOHALIDES
KW - PB OXYCHLORIDE MINERALS
KW - TETRAHEDRA
KW - bromides
KW - copper
KW - kagome network
KW - lead
KW - lone electron pairs
KW - oxocentered polyhedra
KW - selenites
UR - http://www.scopus.com/inward/record.url?scp=85058345228&partnerID=8YFLogxK
U2 - 10.1107/S2052520618016542
DO - 10.1107/S2052520618016542
M3 - Article
AN - SCOPUS:85058345228
VL - 74
SP - 712
EP - 724
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 - 6
ER -
ID: 36823073