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Лекция "Organic chemistry from the laboratory to the interstellar medium"

Среда 14 Ноябрь 2018 15:30
Хиты : 232

Состоится лекция на тему "Organic chemistry from the laboratory to the interstellar medium".

Лектор — Jean-Claude Guillemin, Director of Research at CNRS, Institut des Sciences Chimiques de Rennes, France.

More than 200 molecules have been detected in the clouds between the stars of the interstellar medium (ISM). Many of them are organic compounds. Such species have been formed by a chemistry that depends on the physical and chemical parameters of the different media. By which reactions have these compounds been formed? Which other compounds are present?

The purpose of this talk is to show how this subject has generated a lot of studies in organic chemistry. The choice of compounds, candidates for the ISM, is based on analogies with the detected compounds, a postulated chemistry of this medium or on physico-chemical properties.  Several examples and the particular procedures involved to synthesize them will be presented. The comparison of millimetric spectra obtained in lab and compare to those obtained from radiotelescopes will be portrayed. Experimental studies to simulate the chemistry at 10K on the interstellar grains will be described. In particular, numerous studies devoted to the synthesis, chemistry and spectroscopy of cyanopolyynes and isocyanides, will be detailed.

See for example some of our articles

  • Angew. Chem. Int. Ed. 2005, 44, 7224-7226,
  • J.-C. Chem. Eur. J. 2013, 19, 17683-17686.
  • J. Chem. Phys. 2014, 140, 044329,
  • Chem. Eur. J., 2015,  21, 6042-6047,
  • Guillemin Astronomy&Astrophysics, 2016, 587,
  • L4. Astrophys. J. Lett. 2017, 851,
  • L46. Mon. Not. R. Astron. Soc. 2017, 468 (4): 4592-4600,
  • J. Phys. Chem. A, 2018, 122, 2894-2905.
Место : Аудитория 116