Controlled synthesis and analysis of He–H+3 in a 3.7 K ion trap
Controlled synthesis and analysis of He–H+3 in a 3.7 K ion trap
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HeâH 3 在 3 7 K 离子阱中的受控合成和分析
DOI：
10.1080/00268976.2015.1037802
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发表时间：
--
影响因子：
1.7
通讯作者：
S. Schlemmer
中科院分区：
文献类型：
--
作者：
I. Savic;D. Gerlich;O. Asvany;P. Jusko;S. Schlemmer
三原子氢离子与氦的复合物是在低温22极化离子阱中合成的，氦的数密度高达1016 cm −3。绝对三元速率系数顺序连接He原子已确定从增长的配合物随着存储时间的增加。当标称温度从4 K增加到25 K时，氦标记离子的数量显著减少。通过碰撞的附着和解离之间的竞争导致固定的Hen-H+3（nup to 9）分布。通过IR跃迁的捕获H+3离子的状态特异性激发显着减少复合物的形成。将激光器调谐到2726 cm-1范围内的Δv2= 1跃迁导致LIICG线，即，光谱引起的bylaser诱导的复合物生长抑制。此外，在2700 ~ 2765 cm−1之间还发现了近100条谱线，它们是激光诱导原位形成的He-H+3络合离子解离的结果。这些线尚未分配，但是，它们的吸收强度，统计和predissociation寿命提供了有趣的信息，稳定的复合物，以及在低能量H+3+He碰撞散射共振。势能面的新计算将有助于分析离解谱。有一些迹象表明，在本实验条件下，对位H +3富集。
Complexes of the triatomic hydrogen ion with helium were synthesised in a low-temperature 22-polerfion trap at He number densities of up to 1016cm−3. Absolute ternary rate coefficients for sequentially attaching He atoms have been determined from the growth of complexes with increasing storage time. The number of helium-tagged ions is significantly reduced when increasing the nominal temperature from 4 to 25 K. Competition between attachment and dissociation via collisions leads to stationary Hen–H+3(nup to 9) distributions. State-specific excitation of the trapped H+3ions via IR transitions significantly reduces the formation of complexes. Tuning the laser to Δv2= 1 transitions in the range of 2726 cm−1leads to LIICG lines, i.e., to spectra caused bylaser-induced inhibition of complex growth. In addition, almost 100 lines have been found between 2700 and 2765 cm−1, which are attributed tolaser-induced dissociationof thein situformed He–H+3complex ions. These lines are not yet assigned; however, their absorption strength, statistics and predissociation lifetimes provide interesting information on both the stable complexes as well as on scattering resonances in low-energy H+3+He collisions. New calculations of the potential energy surface will help to analyse the dissociation spectrum. There are some indications that para-H+3is enriched under the conditions of the present experiment.
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DOI：
10.1002/cphc.201200664
发表时间：
2013-01-14
期刊：
Chemphyschem : a European journal of chemical physics and physical chemistry
影响因子：
--
作者：
Bartl P;Leidlmair C;Denifl S;Scheier P;Echt O
通讯作者：
Echt O
DOI：
--
发表时间：
2008
期刊：
影响因子：
--
作者：
Ian W. M. Smith
通讯作者：
Ian W. M. Smith
H3( ) 作为稀有气体-3 的陷阱：在 X(n)H3( ) (n = 1-3) 中多重捕获氖气、氩气和氪气。
DOI：
10.1063/1.3126777
发表时间：
2009
期刊：
The Journal of chemical physics
影响因子：
--
作者：
F. Pauzat;Y. Ellinger;J. Pilmé;O. Mousis
通讯作者：
O. Mousis
影响因子：
3.2
作者：
R. Wuerker;H. Shelton;R. V. Langmuir
通讯作者：
R. Wuerker;H. Shelton;R. V. Langmuir
基于新型高精度全局势能面的H3光谱分析
DOI：
--
发表时间：
2012
期刊：
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子：
--
作者：
O. Polyansky;A. Alijah;N. Zobov;I. Mizus;R. Ovsyannikov;J. Tennyson;L. Lodi;Tamás Szidarovszky;A. Császár
通讯作者：
A. Császár