Generation of polyyne and methylpolyyne molecules from toluene by intense femtosecond laser pulse irradiation

[摘要] Hydrogen-capped and methyl-capped carbon chains (polyynes) have been generated by intense femtosecond laser irradiation of pure liquid toluene. UV-Vis and Raman spectroscopy were used to confirm the presence of polyynes in the irradiated samples, and high performance liquid chromatography (HPLC) was used to separate polyynes up to C18H2and HC13CH3.

[发布机构] Department of Physics, University of Waterloo, 200 University Ave. W, Waterloo; ON; N2L 3G1, Canada^1;Department of Chemistry, Kinki University, Kowakae 3-4-1, Higashi-Osaka; 577-8502, Japan^2;Department of Chemistry, Tokyo Metropolitan University, Minami-Osawa 1-1, Tokyo; 192-0397, Japan^3

[关键词] Carbon chains;Intense femtosecond laser pulse;Irradiated samples;Polyynes;Pure liquids