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Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
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Germanium(II) Dithiolene Complexes.

Phuong M Tran1, Yuzhong Wang1, Mitchell E Lahm1

  • 1Department of Chemistry, Centre for Computational Chemistry, The University of Georgia, Athens, Georgia, 30602-2556, USA.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|August 21, 2023
PubMed
Summary
This summary is machine-generated.

Researchers synthesized novel germanium(II) dithiolene complexes, including a bis-dithiolene germylene with a unique S-Ge-S bond. Their bonding was explored using experimental and theoretical approaches.

Keywords:
carbenesdithiolenesgermanidesgermaniumgermylenes

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Area of Science:

  • Organometallic Chemistry
  • Inorganic Chemistry
  • Materials Science

Background:

  • Germanium(II) compounds are of interest due to their unique bonding capabilities.
  • Dithiolene ligands offer versatile coordination chemistry with main group elements.

Purpose of the Study:

  • To synthesize and characterize novel germanium(II) dithiolene complexes.
  • To investigate the bonding nature of these complexes, particularly the S-Ge-S interaction.

Main Methods:

  • Reaction of an imidazole-based dithiolate with germanium dichloride dioxane.
  • Lewis base ligand exchange reactions.
  • Controlled hydrolysis.
  • Experimental and theoretical bonding investigations.

Main Results:

  • Synthesis of a TMEDA-complexed dithiolene-based germylene (3).
  • Conversion of 3 to monothiolate-complexed (5) and N-heterocyclic carbene-complexed (7) germanium(II) dithiolene complexes.
  • Synthesis of a bis-dithiolene-based germylene (8) featuring a 3-center-4-electron S-Ge-S bond.
  • Detailed investigation of the bonding in complexes 3, 5, and 8.

Conclusions:

  • Novel germanium(II) dithiolene complexes with varying ligand environments were successfully synthesized.
  • The formation of a 3-center-4-electron S-Ge-S bond in a bis-dithiolene germylene was achieved.
  • The electronic structure and bonding characteristics of these germanium complexes were elucidated.