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Dimethyl telluride



Dimethyl telluride
IUPAC name Dimethyl telluride
Identifiers
CAS number 593-80-6
Properties
Molecular formula (CH3)2Te
Molar mass 157.68 g/mol
Appearance Pale yellow, very strong smell
Melting point

-10°C

Boiling point

82°C

Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Dimethyl telluride is an organotelluride compound, formula (CH3)2Te, also known by the abbreviation DMTe.

This was the first material used to grow epitaxial cadmium telluride and mercury cadmium telluride using metalorganic vapour phase epitaxy.[1][2] CAS registry number 593-80-6.

Dimethyl telluride as a product of microbial metabolism was first discovered in 1939.[3] Dimethyl telluride is produced by some fungi and bacteria (Penicillium brevicaule, P. chrysogenum, and P. notatum and the bacterium Pseudomonas fluorescens).[4]

It is highly toxic to humans. It is produced by the body when tellurium or one of its compounds are ingested. It is noticeable by its garlic-like smell. Anyone who has been working with or exposed to tellurium and exhibits this garlic-like smell on the breath, sweat or in the urine should remove themselves from the area. Tellurium is known to be toxic.[5]

See also

References

  1. ^ J. Tunnicliffe, S. J. C. Irvine, O. D. Dosser, J. B. Mullin (1984). "A new MOVPE technique for the growth of highly uniform CMT". J. Cryst. Growth. 68 (1): 245-253. doi:10.1016/0277-5387(95)00249-X.
  2. ^ H. B. Singh, N. Sudha (1996). "Organotellurium precursors for metal organic chemical vapour deposition (MOCVD) of mercury cadmium telluride (MCT)". Polyhedron 15 (5-6): 745-763. doi:10.1016/0277-5387(95)00249-X.
  3. ^ M. L. Bird, F. Challenger (1939). "Formation of organometalloidal and similar compounds by microorganisms. VII. Dimethyl telluride". Journal of the Chemical Society 163-168: 299-305. doi:10.1039/JR9390000163.
  4. ^ R. S. T. Basnayake, J. H. Bius, O. M. Akpolat, T. G. Chasteen (1939). "Production of dimethyl telluride and elemental tellurium by bacteria amended with tellurite or tellurate". Applied Organometallic Chemistry 15 (6): 499 - 510. doi:10.1002/aoc.186.
  5. ^ T. G. Chasteen, R. Bentley (2003). "Biomethylation of Selenium and Tellurium: Microorganisms and Plants". Chemical Reviews 103 (1): 1-26. doi:10.1021/cr010210+.
  • Escherichia coli TehB Requires S-Adenosylmethionine as a Cofactor To Mediate Tellurite Resistance, Mingfu Liu, R. J. Turner, T. L. Winstone, A. Saetre, M. Dyllick-Brenzinger, G. Jickling, L. W. Tari, J. H. Weiner, and D. E. Taylor, Journal of Bacteriology, Vol. 182, No. 22 pp. 6509-6513 (2000)
  • Vacuum ultraviolet absorption spectra of dimethyl sulfide, dimethyl selenide, and dimethyl telluride, J. D. Scott, G. C. Causley, and B. R. Russell, The Journal of Chemical Physics, Vol. 59, Iss. 12, pp. 6577-6586 (1973) doi:10.1063/1.1680037
  • M. M. Gharieb, M. Kierans, G. M. Gadd (1999). "Transformation and tolerance of tellurite by filamentous fungi: accumulation, reduction, and volatilization". Mycological Research 103: 299-305. doi:10.1017/S0953756298007102.
 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Dimethyl_telluride". A list of authors is available in Wikipedia.
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