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Updated: Mar 22, 2026
10:42
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
11.3K
Selone-stabilized aryltellurenyl cations.
Sangeeta Yadav1, Saravanan Raju, Harkesh B Singh
1Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India. chhbsia@chem.iitb.ac.in.
Dalton Transactions (Cambridge, England : 2003)
|April 26, 2016
Summary
Researchers synthesized novel tellurenyl halide and cation adducts using diarylditelluride and a selone ligand. These compounds exhibit unique reactivity, leading to stable adducts with potential applications in tellurium chemistry.
Area of Science:
- Organotellurium Chemistry
- Halogenation Reactions
- Coordination Chemistry
Background:
- Diarylditellurides are versatile precursors in organotellurium chemistry.
- Tellurenyl halides and their adducts are important intermediates.
- The synthesis and characterization of novel tellurium compounds are crucial for expanding chemical knowledge.
Purpose of the Study:
- To synthesize and characterize novel tellurenyl bromide and cation adducts.
- To investigate the reactivity of diarylditellurides with selone ligands.
- To explore the stability and disproportionation of tellurium adducts.
Main Methods:
- Controlled bromination of diarylditelluride to form a Te(II)-Te(IV) mixed-valent tellurenyl bromide.
- Reaction with 1,3-dibutylbenzimidazolin-2-selone to form cationic and anionic adducts.
- Metathesis reactions and one-pot synthesis for generating various tellurenyl halide and cation adducts.
Main Results:
- Formation of a Te(II)-Te(IV) mixed-valent tellurenyl bromide.
- Synthesis of the first selone adduct of a 2,6-dimethylphenyltellurenyl cation with a 2,6-dimethylphenyltellurium dibromide anion.
- Isolation of stable selone adducts of aryltellurenyl halides and their triphenylphosphine analogues.
Conclusions:
- Novel tellurenyl halide and cation adducts were successfully synthesized and characterized.
- The reactivity of tellurenyl compounds with selones and phosphines offers pathways to diverse organotellurium structures.
- The study expands the scope of known tellurium adducts and their synthetic accessibility.
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