The Solvent Effects on the Formation of Polyynes by Laser Ablation

摘要

Polyynes have a unique molecular structure: a linear carbon chain with alternating carbon-carbon single and triple bonds. They are typically terminated by hydrogen atoms to be described as H-(C≡C)_n-H but they are also often terminated by bulky groups. Recently, polyynes are of extensive research target molecules not only in astrophysics area but also in nano-electronics and optical devices. Polyynes are important precursor molecular components in the production of carbon nanotubes and they have been employed as nano-conductors because of their intriguing electrical properties. Besides, their one-dimensional systems have attracted utmost research interest due to strong nonlinear optical properties as well.