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Title: Gas-phase synthesis of racemic helicenes and their potential role in the enantiomeric enrichment of sugars and amino acids in meteorites

Journal Article · · Physical Chemistry Chemical Physics. PCCP
DOI:https://doi.org/10.1039/d2cp03084e· OSTI ID:2325993
ORCiD logo [1];  [1]; ORCiD logo [2]; ORCiD logo [2];  [3];  [3]; ORCiD logo [4];  [5];  [5]; ORCiD logo [6]
  1. University of Hawaii at Manoa, Honolulu, HI (United States)
  2. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  3. Lebedev Physical Institute, Samara (Russia)
  4. Florida International University (FIU), Miami, FL (United States)
  5. University of California, Berkeley, CA (United States). Applied Science and Technology; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Kavli Energy NanoScience Institute, Berkeley, CA (United States)
  6. Chinese Academy of Sciences (CAS), Urumqi (China)

The molecular origins of homochirality on Earth is not understood well, particularly how enantiomerically enriched molecules of astrobiological significance like sugars and amino acids might have been synthesized on icy grains in space preceding their delivery to Earth. Polycyclic aromatic hydrocarbons (PAHs) identified in carbonaceous chondrites could have been processed in molecular clouds by circularly polarized light prior to the depletion of enantiomerically enriched helicenes onto carbonaceous grains resulting in chiral islands. However, the fundamental low temperature reaction mechanisms leading to racemic helicenes are still unknown. Here, by exploiting synchrotron based molecular beam photoionization mass spectrometry combined with electronic structure calculations, we provide compelling testimony on barrierless, low temperature pathways leading to racemates of [5] and [6]helicene. Astrochemical modeling advocates that gas-phase reactions in molecular clouds lead to racemates of helicenes suggesting a pathway for future astronomical observation and providing a fundamental understanding for the origin of homochirality on early Earth.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); Russian Federation; National Energy Research Scientific Computing Center (NERSC); USDOE
Grant/Contract Number:
AC02-05CH11231; FG02-03ER15411; FG02-04ER15570; 075-15-2021-597
OSTI ID:
2325993
Alternate ID(s):
OSTI ID: 1885468
Journal Information:
Physical Chemistry Chemical Physics. PCCP, Vol. 24, Issue 41; ISSN 1463-9076
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Pyrene synthesis in circumstellar envelopes and its role in the formation of 2D nanostructures journal March 2018
A Combined Experimental and Theoretical Study on the Formation of the Amino Acid Glycine (NH 2 CH 2 COOH) and Its Isomer (CH 3 NHCOOH) in Extraterrestrial Ices journal June 2005
d -Amino acids in molecular evolution in space – Absolute asymmetric photolysis and synthesis of amino acids by circularly polarized light journal July 2018
The molecular universe journal July 2013
Low-temperature formation of polycyclic aromatic hydrocarbons in Titan’s atmosphere journal October 2018
Beta decay and the origin of biological chirality: New experimental results journal January 1984
Asymmetric photolysis of (RS)-leucine with circularly polarized ultraviolet light journal March 1977
Synthesis of a Helical Analogue of Kekulene: A Flexible π-Expanded Helicene with Large Helical Diameter Acting as a Soft Molecular Spring journal October 2018
A Combined Experimental and Theoretical Study on the Formation of Interstellar Propylene Oxide (CH 3 CHCH 2 O)—A Chiral Molecule journal June 2018
Enantiomeric Excesses Induced in Amino Acids by Ultraviolet Circularly Polarized Light Irradiation of Extraterrestrial ice Analogs: a Possible Source of Asymmetry for Prebiotic Chemistry journal May 2014
Stern–Gerlach-Type Separations of Structural and Chiral Isomers by Interstellar Magnets journal November 2020
Magnetars and Magnetic Separation of Chiral Radicals in Interstellar Space: Homochirality journal October 2019
Low temperature formation of naphthalene and its role in the synthesis of PAHs (Polycyclic Aromatic Hydrocarbons) in the interstellar medium journal December 2011
Detection of the aromatic molecule benzonitrile ( c -C 6 H 5 CN) in the interstellar medium journal January 2018
On the Abundance Gradients of Organic Molecules along the TMC‐1 Ridge journal May 2000
Homochirality Originates from the Handedness of Helices journal September 2020
Ribose and related sugars from ultraviolet irradiation of interstellar ice analogs journal April 2016
The UMIST database for astrochemistry 2012 journal January 2013
Strain-induced helical chirality in polyaromatic systems journal January 2016
Low-temperature Formation of Carbonaceous Dust Grains from PAHs journal January 2020
Assessing the origins of aliphatic amines in the Murchison meteorite from their compound-specific carbon isotopic ratios and enantiomeric composition journal September 2014
Chirality in Chemistry journal July 1976
A Spectroscopic View on Cosmic PAH Emission journal March 2021
From Interstellar Amino Acids to Prebiotic Catalytic Peptides: A Review journal April 2007
Asymmetric Autocatalysis of Pyrimidyl Alkanol and Its Application to the Study on the Origin of Homochirality journal November 2014
Low-temperature synthesis of polycyclic aromatic hydrocarbons in Titan’s surface ices and on airless bodies journal October 2019
Chiral Molecular Carbon Nanostructures journal May 2019
Enantiomer excesses of rare and common sugar derivatives in carbonaceous meteorites journal May 2016
Non-racemic amino acids in the Murray and Murchison meteorites journal January 2000
The Helicenes: Potential Carriers of Diffuse Interstellar Bands journal January 2021
Formation of benzene in the interstellar medium journal December 2010
Photodissociation of benzene under collision-free conditions: An ab initio /Rice–Ramsperger–Kassel–Marcus study journal April 2004
Combustion chemistry probed by synchrotron VUV photoionization mass spectrometry journal January 2013
Extended High Circular Polarization in the Orion Massive Star Forming Region: Implications for the Origin of Homochirality in the Solar System journal March 2010
Gas phase synthesis of [4]-helicene journal April 2019
TD-1HNMR Measurements Show Enantioselective Dissociation of Ribose and Glucose in the Presence of H217O journal October 2007
Racemic amino acids from the ultraviolet photolysis of interstellar ice analogues journal March 2002
Deuterium Fractionation During Amino acid Formation by Photolysis of Interstellar ice Analogs Containing Deuterated Methanol journal August 2016
Chirally Sensitive Electron-Induced Molecular Breakup and the Vester-Ulbricht Hypothesis journal September 2014
Chirality Amplified: Long, Discrete Helicene Nanoribbons journal December 2020
UV photolysis, organic molecules in young disks, and the origin of meteoritic amino acids journal April 2011
Chiroptical Properties of Symmetric Double, Triple, and Multiple Helicenes journal January 2021
Crossed beam reaction of cyano radicals with hydrocarbon molecules. I. Chemical dynamics of cyanobenzene (C6H5CN; X 1A1) and perdeutero cyanobenzene (C6D5CN; X 1A1) formation from reaction of CN(X 2Σ+) with benzene C6H6(X 1A1g), and d6-benzene C6D6(X 1A1g) journal October 1999
Gaussian-3 theory using coupled cluster energies journal November 1999
Carbonaceous Chondrite Meteorites: the Chronicle of a Potential Evolutionary Path between Stars and Life journal January 2017
Enrichment of the amino acid L-isovaline by aqueous alteration on CI and CM meteorite parent bodies journal March 2009
The Formation of Nitriles in Hydrocarbon-Rich Atmospheres of Planets and Their Satellites:  Laboratory Investigations by the Crossed Molecular Beam Technique journal September 2001
The Search for Chiral Asymmetry as a Potential Biosignature in our Solar System journal November 2019
Isotopic evidence for extraterrestrial non- racemic amino acids in the Murchison meteorite journal September 1997
Detection of two interstellar polycyclic aromatic hydrocarbons via spectral matched filtering journal March 2021
A Detailed Study of the Amino Acids Produced from the Vacuum UV Irradiation of Interstellar Ice Analogs journal January 2008
On the Formation of Dipeptides in Interstellar Model ices journal February 2013
Gaussian-3 (G3) theory for molecules containing first and second-row atoms journal November 1998
Gaussian-3 theory using density functional geometries and zero-point energies journal April 1999
A Unified Mechanism on the Formation of Acenes, Helicenes, and Phenacenes in the Gas Phase journal January 2020
Extraterrestrial prebiotic molecules: photochemistry vs. radiation chemistry of interstellar ices journal January 2019