Oxidation of carbynes: Signatures in infrared spectra.

Autor: Cinquanta, E., Manini, N., Ravagnan, L., Caramella, L., Onida, G., Milani, P., Rudolf, P.
Předmět:
Zdroj: Journal of Chemical Physics; 6/28/2014, Vol. 140 Issue 24, p244708-1-244708-6, 6p, 2 Charts, 4 Graphs
Abstrakt: We report and solidly interpret the infrared spectrum of both pristine and oxidized carbynes embedded in a pure-carbon matrix. The spectra probe separately the effects of oxidation on sp- and on sp²-hybridized carbon, and provide information on the stability of the different structures in an oxidizing atmosphere. The final products are mostly short end-oxidized carbynes anchored with a double bond to sp² fragments, plus an oxidized sp² amorphous matrix. Our results have important implications for the realization of carbyne-based nano-electronics devices and highlight the active participation of carbynes in astrochemical reactions where they act as carbon source for the promotion of more complex organic species. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index