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Synthesis and Characterization of [Rb([18]crown-6)]3 As15 Zn·4NH3 and [Rb([2.2.2]crypt)]4 Sb14 Zn·8NH3

Kaas, Marina ; Korber, Nikolaus


The new compound [Rb([18]crown-6)](3)As15Zn center dot 4NH(3) was obtained by the reaction of Rb3As7, ZnPh2, [18] crown-6, and [2.2.2]crypt in liquid ammonia. The black monoclinic crystals contain the (As15Zn)(3-) anion, in which two As-7(3-) cages are linked by an As-Zn unit. The anionic units are separated by cationic [Rb([18]crown-6)](+) units. The analogous reaction of Rb3Sb7, ZnPh2, ...


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