New Insights into the Characterization of ‘Insoluble Black HCN Polymers’
| Autor: | José A. Martín-Gago, José Luis de la Fuente, César Menor-Salván, Celia Rogero, Marta Ruiz-Bermejo, Susana Osuna-Esteban |
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| Rok vydání: | 2012 |
| Předmět: |
Magnetic Resonance Spectroscopy
Polymers Bioengineering Biochemistry Oligomer chemistry.chemical_compound Tetramer Hydrogen Cyanide Diaminomaleonitrile Nitriles Spectroscopy Fourier Transform Infrared Organic chemistry Molecular Biology chemistry.chemical_classification Aqueous solution Primary (chemistry) Photoelectron Spectroscopy Imidazoles General Chemistry General Medicine Polymer Nuclear magnetic resonance spectroscopy Amides chemistry Polymerization Molecular Medicine |
| Zdroj: | Chemistry & Biodiversity. 9:25-40 |
| ISSN: | 1612-1872 |
| DOI: | 10.1002/cbdv.201100036 |
| Popis: | The data presented here provide a novel contribution to the understanding of the structural features of HCN polymers and could be useful in further development of models for prebiotic chemistry. The interpretation of spectroscopic and analytical data, along with previous results reported by other authors, allowed us to propose a mechanism for the aqueous polymerization of HCN from its primary and simplest isolated oligomer, the diaminomaleonitrile (DAMN) tetramer. We suggest that 'insoluble black HCN polymers' are formed by an unsaturated complex matrix, which retains a significant amount of H(2) O and important bioorganic compounds or their precursors. This polymeric matrix can be formed by various motifs of imidazoles and cyclic amides, among others. The robust formation of HCN polymers assayed under several conditions seems to explain the plausible ubiquity of these complex substances in space. |
| Databáze: | OpenAIRE |
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