Are crystalline C-(H-O-N) carbons the elusive meteoritic carbynes?

Details Are crystalline C-(H-O-N) carbons the elusive meteoritic carbynes? Are crystalline C-(H-O-N) carbons the elusive meteoritic carbynes?

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993metic..28..242r&link_type=abstract

Meteoritics (ISSN 0026-1114), vol. 28, no. 2, p. 242-245.

Computer Science

1

Carbon, Carbonaceous Chondrites, Diffraction Patterns, Interstellar Chemistry, Meteoritic Composition, Crystallography, Graphite, Micrometeorites, Pyrolysis, Single Crystals, Meteorites, Carbynes, Carbon, Crystalline, Origin, Formation, Pyrolysis, Hypotheses, Carbonaceous Material, Analysis

Scientific paper

I present an internally consistent reinterpretation of carbyne diffraction data making a few plausible assumptions. The results support that carbynes could be crystalline, randomly interstratified (or mixed-layered) carbons with variable C/(C+H+O+N) ratios rather than thermodynamically stable carbon allotropes. The metastable carbynes are likely the result of incomplete, kinetically-inhibited, low-temperature pyrolysis of precursor material. A renewed interest in meteoritic carbynes should seek to combine light-element chemistry and crystallography of these elusive carbons.

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