Document Detail


The chemistry of cyanuric acid (H3C3N3O3) under high pressure and high temperature.
MedLine Citation:
PMID:  18266349     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We have studied cyanuric acid (H(3)C(3)N(3)O(3)) at static pressures up to 8.1 GPa and simultaneous temperatures up to 750 K, using primarily infrared absorption spectroscopy and visual observation. The corresponding phase diagram compares favorably with theoretical predictions of metastable organic materials. Two reactions were observed and characterized; both are irreversible. Below 2 GPa, melting is accompanied by a decomposition reaction, and upon cooling, cyanuric acid is not recovered. Above 2 GPa, heating results in a solid product recoverable at ambient conditions. Corresponding infrared spectra suggest that pressure leads to the formation of heterocycles of increasing complexity and biological potential, with the composition determined by the pressure of formation. Cyanuric acid is of interest at these conditions because it and its monomer, isocyanic acid, are "prebiotic" compounds found in stellar dust clouds, meteorites, and other remnants of the early Earth.
Authors:
W Montgomery; J C Crowhurst; J M Zaug; R Jeanloz
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2008-02-12
Journal Detail:
Title:  The journal of physical chemistry. B     Volume:  112     ISSN:  1520-6106     ISO Abbreviation:  J Phys Chem B     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-02-28     Completed Date:  2008-04-24     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101157530     Medline TA:  J Phys Chem B     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2644-8     Citation Subset:  IM    
Affiliation:
Department of Earth & Planetary Science, University of California, Berkeley, 307 McCone Hall, Berkeley, California 94720-4767.
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MeSH Terms
Descriptor/Qualifier:
Biogenesis
Cesium / chemistry
Heterocyclic Compounds / chemical synthesis,  chemistry
Hot Temperature*
Iodides / chemistry
Phase Transition
Pressure
Spectroscopy, Fourier Transform Infrared
Triazines / chemistry*
Chemical
Reg. No./Substance:
0/Heterocyclic Compounds; 0/Iodides; 0/Triazines; 108-80-5/cyanuric acid; 7440-46-2/Cesium; 7789-17-5/cesium iodide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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