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C2-addition patterns emerging from acetylene and nickel sulfide in simulated prebiotic hydrothermal conditions.
Comm. Chem. 6:220 (2023)
Chemical complexity is vital not only for the origin of life but also for biological evolution. The chemical evolution of a complex prebiotic mixture containing acetylene, carbon monoxide (CO), and nickel sulfide (NiS) has been analyzed with mass spectrometry as an untargeted approach to reaction monitoring. Here we show through isotopic 13C-labelling, multiple reaction products, encompassing diverse CHO and CHOS compounds within the complex reaction mixture. Molecules within the same chemical spaces displayed varying degrees of 13C-labelling, enabling more robust functional group characterization based on targeted investigations and differences in saturation levels among the described classes. A characteristic C2-addition pattern was detected in all compound classes in conjunction with a high diversity of thio acids, reminiscent of extant microbial C2-metabolism. The analysis involved a time-resolved molecular network, which unveiled the behavior of sulfur in the system. At the onset of the reaction, early formed compounds contain more sulfur atoms compared to later emerging compounds. These results give an essential insight into the still elusive role of sulfur dynamics in the origin of life. Moreover, our results provide temporally resolved evidence of the progressively increasing molecular complexity arising from a limited number of compounds.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Assignment; Evolution; Ion
ISSN (print) / ISBN
2399-3669
e-ISSN
2399-3669
Journal
Communications Chemistry
Quellenangaben
Volume: 6,
Issue: 1,
Article Number: 220
Publisher
Springer
Publishing Place
Heidelberger Platz 3, Berlin, 14197, Germany
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Research Unit Analytical BioGeoChemistry (BGC)
Grants
Hans-Fischer-Gesellschaft - Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germanys Excellence Strategy - EXC
Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
This research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 364653263 - TRR 235 (CRC 235). C.S. and C.H. thank the Hans-Fischer-Gesellschaft (D-Munich) for financial support. Furthermore, this project was
Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
This research was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - Project-ID 364653263 - TRR 235 (CRC 235). C.S. and C.H. thank the Hans-Fischer-Gesellschaft (D-Munich) for financial support. Furthermore, this project was