Vibrational spectroscopy of gas-phase metal-carbide clusters and nanocrystals
Vibrational spectroscopy of gas-phase metal-carbide clusters and nanocrystals
复制标题
气相金属碳化物簇和纳米晶体的振动光谱
DOI：
10.1103/physrevlett.83.4983
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发表时间：
1999
影响因子：
8.6
通讯作者：
G. Meijer
中科院分区：
文献类型：
--
作者：
D. V. Heijnsbergen;G. V. Helden;Michael A. Duncan;A. V. Roij;G. Meijer
脉冲喷嘴激光汽化在气相中生成了中性的Ti8C12和Ti14C13团簇。用脉冲自由电子激光激发红外多光子使这些团簇产生热电子发射，并探测到母体分子离子。这些团簇的振动共振增强了多光子电离，使得观察到红外共振增强的多光子电离光谱成为可能。这些光谱表明“MET-CARS”的C-C成键，而Ti14C13与块体KC有显著的相似之处。
Neutral Ti8C12 and Ti14C13 clusters are produced in the gas phase with pulsed-nozzle laser vaporization. Infrared multiphoton excitation with a pulsed free-electron laser results in thermionic electron emission for these clusters, and the parent molecular ions are detected. Multiphoton ionization is strongly enhanced on vibrational resonances of these clusters, making it possible to observe infrared resonance-enhanced multiphoton ionization spectra. These spectra indicate C-C bonding for the "met-cars" while Ti14C13 has remarkable similarities to bulk KC.
DOI：
10.1016/b978-0-12-221820-0.x5000-x
发表时间：
1996
期刊：
--
影响因子：
--
作者：
L. B. Ebert
通讯作者：
L. B. Ebert