Eclipsed- and Staggered-[Ge18Pd3{EiPr3}6]2- (E = Si, Sn): Positional Isomerism in Deltahedral Zintl Clusters.

We report the synthesis and characterization of the cluster anions [Ge18Pd3{SiiPr3}6]2- (1) with a core of face-fused twinned icosahedra, Ge18Pd3, and two sets of three iPr3Si-substituents positioned in "eclipsed" geometry. The new anion is a positional isomer of the recently reported "staggered" stannyl-ligated counterpart [Ge18Pd3{SniPr3}6]2- (2), showing… CONTINUE READING