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- Title
Redox Reaction between Main-Group Elements (Te, Sn, Bi) and N-Heterocyclic-Carbene-Derived Selenium Halides: A Facile Method for the Preparation of Monomeric Halides.
- Authors
Manjare, Sudesh T.; Yadav, Sangeeta; Singh, Harkesh B.; Butcher, Ray J.
- Abstract
The synthesis and characterization of substituted benzimidazolin-2-selones ( 4c- 4d) and -tellone ( 4i) are reported. Upon reaction with halogens (I2, Br2, and Cl2), these selones and tellone yield dihaloselones/tellone ( 5c- 5i). The reaction of dihaloselones with elemental tellurium/tin/bismuth leads to the formation of selone-coordinated monomeric tellurium tetrahalides, tellurium dibromide ( 8), tin tetrahalides, and bismuth triiodide adducts ( 7a- 7g), respectively. The structures of the tellurium tetrahalide ( 7a, 7d, and 7g), tellurium dibromide ( 8), tin tetrahalide, and bismuth triiodide adducts have been established by single-crystal X-ray analysis. The bismuth triiodide adduct is the first neutral tetrameric structure with selones. The bismuth adduct has been used as a single-source precursor for the synthesis of bismuth selenide (Bi2Se3) nanoparticles, which were characterized by powder XRD patterns. The TEM images show the hexagonal shape of the nanoparticles.
- Subjects
SELONES; HALOGENS; TELLURIUM; TIN; BISMUTH; NANOPARTICLES
- Publication
European Journal of Inorganic Chemistry, 2013, Vol 2013, Issue 30, p5344
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201300850