Asymmetric synthesis of amino acid precursors in interstellar complex organics by circularly polarized light

DOI 機関リポジトリ 機関リポジトリ (HANDLE) 機関リポジトリ (HANDLE) HANDLE ほか3件をすべて表示 一部だけ表示 被引用文献22件 オープンアクセス

この論文をさがす

説明

The asymmetric synthesis of amino acid precursors from complex organics have been performed. A gaseous mixture of carbon monoxide, ammonia and water (molecules which are among those identified in the interstellar medium) was irradiated with 3.0 MeV protons to obtain amino acid precursors within high-molecular-weight complex organics of up to 3,000 Da. The amino acid precursor products synthesized were then irradiated with right (R-) or left (L-) ultraviolet circularly polarized light (UV-CPL) obtained from a synchrotron radiation (SR) source. Glycine was a predominant product, and number of chiral amino acids including alanine were identified following acid hydrolysis. R-UV-CPL preferentially produced D-alanine, while L-UV-CPL yielded more L-alanine. Enantiomeric excesses (% D - % L) of + 0.44 % and - 0.65 % were obtained by R-UV-CPL and L-UV-CPL, respectively. These results imply that the origins of chirality in meteoritic amino acids could be accounted for by the formation of asymmetric amino acid precursors from extraterrestrial complex organics by CPL in space.

収録刊行物

被引用文献 (22)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ