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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 33, Number 2
BKCSDE 33(2)
February 20, 2012

Title	Preparation of Polyynes by the Laser Ablation of Graphite in Water and Organic Solvents
Author	Seung Keun Shin, Seung Min Park *
Keywords	Polyynes, Laser ablation, Graphite
Abstract	Polyynes were formed by laser ablation of a graphite target in deionized water (H2O and D2O) and various organic solvents such as acetonitrile, n-hexane, and c-hexane and were identified by analyzing ultraviolet (UV) absorption and Raman spectra. We assigned the major UV absorption peaks that coincided with the electronic transitions corresponding to linear polyyne chains. The UV absorption peak intensities of a polyyne solution decreased as the holding temperature of the solution increased. Also, the absorption spectra of polyynes obtained by laser ablation of a graphite target at different volume fractions of H2O and D2O were examined.
Page	597 - 600
Full Text	PDF

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