Abstract
Crystals of PbCu3(OH)(NO3)(SeO3)3·1/2H2O [a=7.761(3)Å,b=9.478(4)Å,c=9.514(4)Å, α=66.94(2)°, β=69.83(2)°, γ=81.83(2)°, space group P\(\bar 1\),Z=2] and Pb2Cu3O2(NO3)2(SeO3)2 [a=5.884(2)Å,b=12.186(3)Å,c=19.371(4)Å, space group Cmc21,Z=4] were synthesized under hydrothermal conditions. Their crystal structures were refined with three-dimensional X-ray data toR w=0.033 resp. 0.055. In PbCu3(OH)(NO3)(SeO3)3·1/2H2O the Cu atoms are [4+1] and [4+2] coordinated and via SeO3 groups a three-dimensional atomic arrangement is built up. In Pb2Cu3O2(NO3)2(SeO3)2 there are\(_\infty ^2 [{\text{Pb}}_{\text{2}} {\text{Cu}}^{{\text{[4]}}} _3 {\text{O}}_{\text{2}} ({\text{SeO}}_{\text{2}} )_2 ]\) sheets, which are connected only via Pb-O bonds ranging from 2.98 Å to 3.16 Å.
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Effenberger, H. PbCu3(OH)(NO3)(SeO3)3·1/2H2O und Pb2Cu3O2(NO3)2(SeO3)2: Synthese und Kristallstrukturuntersuchung. Monatsh Chem 117, 1099–1106 (1986). https://doi.org/10.1007/BF00811322
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DOI: https://doi.org/10.1007/BF00811322