Communication: Barium ions and helium nanodroplets: solvation and desolvation.
Communication: Barium ions and helium nanodroplets: solvation and desolvation.
复制标题
通讯：钡离子和氦纳米液滴：溶剂化和去溶剂化。
DOI：
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发表时间：
2012
影响因子：
4.4
通讯作者：
M. Drabbels
中科院分区：
文献类型：
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作者：
Xiaohang Zhang;M. Drabbels
研究了位于氦纳米液滴表面的钡原子的光致电离所产生的Ba(+)离子的溶剂化作用。与6P(2)P(1/2)←6S(2)S(1/2)和6P(2)P(3/2)←6S(2)S(1/2)跃迁相对应的激发光谱与体相He II[H·J·Reyher，H.Bauer，C.Huber，R.Mayer，A.Schafer，和A.Winnacker，Phys.让我们来吧。A 115,238(1986)]，表明氦液滴表面形成的离子被氦完全溶剂化。飞行时间质谱图表明，在溶剂化的Ba(+)离子激发后，这些离子正以光秃秃的Ba(+)离子或小的Ba(+)He(N)(n<；20)络合物的形式从氦液滴中喷出。
The solvation of Ba(+) ions created by the photoionization of barium atoms located on the surface of helium nanodroplets has been investigated. The excitation spectra corresponding to the 6p (2)P(1/2) ← 6s (2)S(1/2) and 6p (2)P(3/2) ← 6s (2)S(1/2) transitions of Ba(+) are found to be identical to those recorded in bulk He II [H. J. Reyher, H. Bauer, C. Huber, R. Mayer, A. Schafer, and A. Winnacker, Phys. Lett. A 115, 238 (1986)], indicating that the ions formed at the surface of the helium droplets become fully solvated by the helium. Time-of-flight mass spectra suggest that following the excitation of the solvated Ba(+) ions, these are being ejected from the helium droplets either as bare Ba(+) ions or as small Ba(+)He(n) (n < 20) complexes.