Related Experiment Video
Updated: Aug 18, 2025

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
Published on: February 11, 2012
Oxidative Coupling of [Ge9(Si(SiMe3)3)2]2- with f Elements
Christian Gienger1, Claudio Schrenk1, Andreas Schnepf1
1Chemistry Department, University of Tübingen Auf der Morgenstelle 18, 72076 Tübingen, Germany.
Abstract:
We report the reactions of K2[Ge9(Hyp)2] (Hyp = Si(SiMe3)3) with (thf)3YbI3, ThI4, and UCl4, leading to the oxidative coupling of the metalloid germanium cluster to form the dimeric dianion [Ge18(Hyp)4]2-. The novel dimerized Ge18-cluster was isolated and characterized by single-crystal X-ray diffraction analysis as a component of ionic compounds [Yb(thf)6][Ge18(Hyp)4] (1) and [K(2.2.2-crypt)]2[Ge18(Hyp)4] (2) with two different counterions. The dihedral angle between two intact Ge9 cages depends on the counterions, which was also studied by quantum-chemical calculations.
More Related Videos
09:37Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
12:43The Synthesis of [Sn10SiSiMe334]2- Using a Metastable SnI Halide Solution Synthesized via a Co-condensation Technique
Published on: November 28, 2016
Related Concept Videos
Properties of Transition Metals
Valence Bond Theory
Formation of Complex Ions
Lewis Structures of Molecular Compounds and Polyatomic Ions
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Ionic Bonding and Electron Transfer