Journal
CARBON
Volume 47, Issue 7, Pages 1659-1663Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2009.02.026
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Long-chain polyynes up to C22H2 were prepared by the liquid-phase laser ablation of a graphite pellet. Short-chain polyynes (C4H2, C6H2, C8H2 and C10H2) prepared simultaneously were identified not by UV-Vis spectra but by LC/MS spectra because C4H2 and C6H2 have absorption peaks at short wavelengths below 200 nm. Polyynes could first be immobilized in a SiO2 dried gel, which was confirmed by UV-Vis spectra of the gel. (C) 2009 Elsevier Ltd. All rights reserved.
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