Summary
The X-ray crystal structure of the compound Na3(NH4)12[Mo57Fe6(NO)6O174(OH)3(H2O)24]·76H2O (3) [P63/mmc;a=2380.6(5),c=2763.4(7),Z=2], the giant cluster anion of which has the shape of a doughnut, shows remarkable details: The cluster [{Fe(H2O)2}6{Mo(μ-H2O)2(μ-OH)Mo}3{ Mo15(MoNO) 3+2 O58(H2O)2}3]15− can be described as being composed of three transferable {Mo17} ligands bridged by cationic centers and contains a novel nanodimensional central cavity.
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Müller, A., Plass, W., Krickemeyer, E. et al. Kristallstruktur von Na3(NH4)12[Mo57Fe6(NO)6O174(OH)3(H2O)24]·76H2O, einer Verbindung mit einem ungewöhnlichen Clusteranion. Monatsh Chem 125, 525–533 (1994). https://doi.org/10.1007/BF00811844
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DOI: https://doi.org/10.1007/BF00811844