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NMR of Organoselenium and Organotellurium Compounds

Organic Selenium and Tellurium (2013)

  1. Arunashree Panda1,
  2. Harkesh B. Singh2

Published Online: 14 DEC 2012

DOI: 10.1002/9780470682531.pat0702

Patai's Chemistry of Functional Groups

Patai's Chemistry of Functional Groups

How to Cite

Panda, A. and Singh, H. B. 2012. NMR of Organoselenium and Organotellurium Compounds. Patai's Chemistry of Functional Groups. .

Author Information

  1. 1

    Department of Chemistry, Birla Institute of Technology and Science, Pilani—K. K. Birla Goa Campus, Goa—403726, India

  2. 2

    Department of Chemistry, Indian Institute of Technology Bombay, Powai-400076, India

Publication History

  1. Published Online: 14 DEC 2012

Abstract

This chapter gives a systematic account of and surveys the available data on 77Se and 125Te NMR spectra of organochalcogen compounds such as chacogenols, mono and dichalcogenides, chalcogenolates, tetra and hexa substituted chalcogen compounds, chalcogenyl halides, chalcogen-containing heterocycles and macrocycles, chalcogen-oxygen/nitrogen compounds, etc. The review is based on the literature from 1985 to 2011 and includes 780 references. The 77Se/125Te NMR spectra of organochalcogen compounds reveal expansive chemical shifts (δSeTe) leading to sharp sensitivity of these nuclei (Se/Te) to their environment such as solvent, temperature, molecular geometry, ligand backbone, oxidation state, chelate ring size, steric strain, etc. This is well illustrated by the advantageous use of this spectroscopy in the successful determination of the solution state structure of several organochalcogen compounds. It is noted that the 125Te and 77Se chemical shifts of a large number of structurally similar organotellurium and selenium compounds show linear relationship.

Keywords:

  • 77Se NMR;
  • 125Te NMR;
  • organoselenium compounds;
  • organotellurium compounds;
  • monochalcogenides;
  • dichalcogenides;
  • Se-Te containing heterocycles;
  • Se-Te containing macrocycles;
  • C[DOUBLE BOND]E compounds (E = Se; Te);
  • Chalcogenolates;
  • Se/Te-O compounds