Possible interstellar origin of amino acids in carbonaceous chondrites

Details Possible interstellar origin of amino acids in carbonaceous chondrites Possible interstellar origin of amino acids in carbonaceous chondrites

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007msl..confe.122e&link_type=abstract

"Molecules in Space and Laboratory, meeting held in Paris, France, May 14-18, 2007. Editors: J.L. Lemaire, F. Combes. ISBN: 9782

Mathematics

Logic

Modelling_Interactions

Scientific paper

Amino acids are currently identified in carbonaceous chondrites but none are yet observed for sure in the interstellar medium. The question of the relative stability of these prebiotic compounds with respect to the other possible species of same chemical formula is addressed by means of quantum chemical simulations. It is shown that glycine, alanine and gamma-aminobutyric acid are far from being the most stable compounds of their respective families of isomers. By contrast protonated glycine, beta-alanine (more stable than the biological alpha-alanine) and gamma-aminobutyric acid are the most stable compounds that can be formed. These results suggest that amino acids could have been formed as protonated species in the interstellar medium and then incorporated in the meteorites where they are neutralized. Detecting protonated species is now a major objective.

Affiliated with

Also associated with

No associations

Rating

Possible interstellar origin of amino acids in carbonaceous chondrites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Possible interstellar origin of amino acids in carbonaceous chondrites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible interstellar origin of amino acids in carbonaceous chondrites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1024619