Related Experiment Video
Updated: Jun 24, 2026

Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
Published on: February 11, 2012
Electron transfer. 144. Reductions with germanium(II)
1Department of Chemistry, Kent State University, Kent, Ohio 44242, USA.
Germanium(II) (Ge(II)) solutions are stable and useful for redox studies. Ge(II) can act as a one-electron reductant, forming Ge(III) intermediates in reactions with various oxidants.
Area of Science:
- Inorganic Chemistry
- Redox Chemistry
- Solution Chemistry
Background:
- Germanium(II) (Ge(II)) is a potent reductant.
- Understanding the redox behavior of Ge(II) is crucial for its application in chemical reactions.
Purpose of the Study:
- To investigate the stability and redox properties of Ge(II) solutions.
- To elucidate the reaction mechanisms of Ge(II) with various oxidants, including Fe(III), I3-, IrCl6(2-), and PtCl6(2-).
Main Methods:
- Preparation and stabilization of Ge(II) solutions.
- Kinetic studies of redox reactions using spectrophotometry.
- Analysis of reaction mechanisms through rate law determination.
Main Results:
- Stable Ge(II) solutions (0.2-0.4 M in 6 M HCl) were prepared and found to be stable for over 3 weeks.
- Ge(II) reduction of Fe(III), catalyzed by Cu(II), proceeds via a Ge(III) intermediate.
- Reactions with I3-, IrCl6(2-), and PtCl6(2-) show complex kinetics, with halide catalysis observed for the latter two.
Conclusions:
- Ge(II) can participate in both one-electron (1e-) and two-electron (2e-) transfer processes.
- The reaction conditions, such as oxidant strength and halide concentration, significantly influence the redox pathway of Ge(II).
- Ge(II) exhibits versatile redox behavior, comparable to In(I), but requires specific conditions for 1e- transactions.
More Related Videos
09:45Epitaxial Growth of Perovskite Strontium Titanate on Germanium via Atomic Layer Deposition
Published on: July 26, 2016
06:57Theoretical Calculation and Experimental Verification for Dislocation Reduction in Germanium Epitaxial Layers with Semicylindrical Voids on Silicon
Published on: July 17, 2020
Related Concept Videos
Ionization Energy
E2 Reaction: Stereochemistry and Regiochemistry
When a substrate with two different β hydrogens undergoes an E2 elimination, the presence of a strong base can yield two regioisomeric alkenes. The more-substituted alkene is the major product and...
Oxymercuration-Reduction of Alkenes
Acid Halides to Ketones: Gilman Reagent
As shown below, the mechanism proceeds in two steps. First, one of the alkyl groups of the reagent acts as a nucleophile and attacks the acyl carbon of the acid chloride to form a tetrahedral intermediate. This is followed by the reformation of the carbon–oxygen double...
Benzene to 1,4-Cyclohexadiene: Birch Reduction Mechanism
π Electron Effects on Chemical Shift: Overview