Discovery of the interstellar chiral molecule propylene oxide (CH3CHCH2O)

被引：240

作者：

McGuire, Brett A. ^{[1
,2
]}

Carroll, P. Brandon ^{[2
]}

Loomis, Ryan A. ^{[3
]}

Finneran, Ian A. ^{[2
]}

Jewell, Philip R. ^{[1
]}

Remijan, Anthony J. ^{[1
]}

Blake, Geoffrey A. ^{[2
,4
]}

机构：

[1] Natl Radio Astron Observ, Edgemont Rd, Charlottesville, VA 22903 USA

[2] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA

[3] Harvard Univ, Dept Astron, Cambridge, MA 02138 USA

[4] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

来源：

SCIENCE | 2016年 / 352卷 / 6292期

基金：

美国国家科学基金会;

关键词：

GBT PRIMOS SURVEY; ORGANIC-MOLECULES; AMINO-ACIDS; TELESCOPE; CHEMISTRY; METEORITE; REGIONS; C-C2H4O; ICE;

D O I：

10.1126/science.aae0328

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Life on Earth relies on chiral molecules that is, species not superimposable on their mirror images.This manifests itself in the selection of a single molecular handedness, or homochirality, across the biosphere. We present the astronomical detection of a chiral molecule, propylene oxide (CH3CHCH2O), in absorption toward the Galactic center. Propylene oxide is detected in the gas phase in a cold, extended molecular shell around the embedded, massive protostellar clusters in the Sagittarius B2 star-forming region. This material is representative of the earliest stage of solar system evolution in which a chiral molecule has been found.

引用

页码：1449 / 1452

页数：4

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