Carbyne forms of carbon - Do they exist

Details Carbyne forms of carbon - Do they exist Carbyne forms of carbon - Do they exist

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sci...216..984s&link_type=abstract

Science, vol. 216, May 28, 1982, p. 984-986.

Computer Science

25

Carbon, Diffraction Patterns, Mineralogy, Polymorphism, Chemical Composition, Contaminants, Crystal Structure, Electron Diffraction, Electron Microscopy, Graphite, Quartz, Silicates, X Ray Spectroscopy

Scientific paper

Carbynes, or polymorphs of elemental carbon first reported synthesized by Kasatochkin et al (1967), have generally been recognized by their characteristic hexagonal electron diffraction pattern. It is pointed out, however, that sheet silicate minerals give rise to hexagonal diffraction patterns with a similar range of interplanar spacings. A reexamination of reported occurrences of carbynes, including chaoite, by means of TEM shows that nontronite and quartz contaminants could account for most of the cases previously attributed to chaoite. It is recommended that in future searches for carbyne, energy-dispersive X-ray analyses should be conducted to verify the chemistry of individual, carbyne-candidate grains.

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