{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,25]],"date-time":"2024-08-25T04:29:25Z","timestamp":1724560165018},"reference-count":44,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2013,9,25]],"date-time":"2013-09-25T00:00:00Z","timestamp":1380067200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"Polymers of hydrogen cyanide and their hydrolysis products constitute a plausible, but still poorly understood proposal for early prebiotic chemistry on Earth. HCN polymers are generated by the interplay of more than a dozen distinctive reaction mechanisms and form a highly complex mixture. Here we use a computational model based on graph grammars as a means of exploring the chemical spaces of HCN polymerization and hydrolysis. A fundamental issue is to understand the combinatorial explosion inherent in large, complex chemical systems. We demonstrate that experimental data, here obtained by mass spectrometry, and computationally predicted free energies together can be used to guide the exploration of the chemical space and makes it feasible to investigate likely pathways and chemical motifs even in potentially open-ended chemical systems.<\/jats:p>","DOI":"10.3390\/e15104066","type":"journal-article","created":{"date-parts":[[2013,9,25]],"date-time":"2013-09-25T16:47:40Z","timestamp":1380127660000},"page":"4066-4083","source":"Crossref","is-referenced-by-count":30,"title":["Navigating the Chemical Space of HCN Polymerization and Hydrolysis: Guiding Graph Grammars by Mass Spectrometry Data"],"prefix":"10.3390","volume":"15","author":[{"given":"Jakob","family":"Andersen","sequence":"first","affiliation":[{"name":"Department of Mathematics and Computer Science, University of Southern Denmark, Odense M DK-5230, Denmark"},{"name":"Max Planck Institute for Mathematics in the Sciences, Leipzig D-04103, Germany"}]},{"given":"Tommy","family":"Andersen","sequence":"additional","affiliation":[{"name":"Institute of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense M DK-5230, Denmark"}]},{"given":"Christoph","family":"Flamm","sequence":"additional","affiliation":[{"name":"Institute for Theoretical Chemistry, University of Vienna, Wien A-1090, Austria"}]},{"given":"Martin","family":"Hanczyc","sequence":"additional","affiliation":[{"name":"Institute of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense M DK-5230, Denmark"}]},{"given":"Daniel","family":"Merkle","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Computer Science, University of Southern Denmark, Odense M DK-5230, Denmark"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-5016-5191","authenticated-orcid":false,"given":"Peter","family":"Stadler","sequence":"additional","affiliation":[{"name":"Max Planck Institute for Mathematics in the Sciences, Leipzig D-04103, Germany"},{"name":"Institute for Theoretical Chemistry, University of Vienna, Wien A-1090, Austria"},{"name":"Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, University of Leipzig, Leipzig D-04107, Germany"},{"name":"Fraunhofer Institute for Cell Therapy and Immunology, Leipzig, D-04103, Germany"},{"name":"Center for non-coding RNA in Technology and Health, University of Copenhagen, Frederiksberg C DK-1870, Denmark"},{"name":"Santa Fe Institute, 1399 Hyde Park Rd, Santa Fe NM 87501, USA"}]}],"member":"1968","published-online":{"date-parts":[[2013,9,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"528","DOI":"10.1126\/science.117.3046.528","article-title":"A production of amino acids under possible primitive earth conditions","volume":"117","author":"Miller","year":"1953","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"342","DOI":"10.1007\/s12052-012-0443-9","article-title":"Prebiotic chemistry: What we know, what we don\u2019t","volume":"5","author":"Cleaves","year":"2012","journal-title":"Evol. 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