Preparation of polyynes up to C22H2 by liquid-phase laser ablation and their immobilization into SiO2 gel

作者：Matsutani Ryutaro; Ozaki Fumiyoshi; Yamamoto Riyo; Sanada Tomoe; Okada Yutaka; Kojima Kazuo^*

来源：Carbon, 2009, 47(7): 1659-1663.

DOI：10.1016/j.carbon.2009.02.026

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.

• 出版日期2009-6