Experimental evidence for long-lived HeAr2+ rare-gas dimers

Ben‐Itzhak, I.; Bouhnik, J. P.; Esry, B. D.; Gertner, I.; Rosner, B.

doi:10.1016/s0009-2614(99)00559-x

Cited by 12 publications

(4 citation statements)

References 28 publications

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“…The CID cross section of CD 2+ 2 in air was determined to be (2 ± 1) × 10 −15 cm 2 . This cross section has a similar magnitude as that of other dications, like NeAr 2+ and HeAr 2+ , at a similar collision energy (see Ben-Itzhak et al 1993a, 1999b.…”

Section: Formation Of Long-lived CD 2+supporting

confidence: 59%

Formation of long-lived CD_n²⁺and CH_n²⁺dications

Levy¹,

Bar-David²,

Ben‐Itzhak³

et al. 1999

J. Phys. B: At. Mol. Opt. Phys.

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A systematic study of the formation of CDn2+ and CHn2+ dications in fast charge-stripping collisions with Ar atoms was conducted. The experimental method was based on the detection of the D (or H) fragments of the molecular ion of interest, and thus reducing the effect of the fraction of molecular ions containing the 13C isotope and other beam impurities. We observed long-lived CD22+, CD42+, and CD52+ dications. In the same process neither long-lived CD2+ nor CD32+ were observed. The mean lifetime of CD22+ was determined to be 4.0±1.11.3 µs, and those of CD42+ and CD52+ were longer than 2.1 and 3.3 µs, respectively. The production cross sections of CDn2+ from different CDm+ beams were measured. Long-lived CD22+ was formed from all CDm+ beams (m2) and also directly from the rf ion source. In contrast, CD42+ and CD52+ were formed only from CD4+ and CD5+, respectively.

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Section: Formation Of Long-lived CD 2+supporting

confidence: 59%

Formation of long-lived CD_n²⁺and CH_n²⁺dications

Levy¹,

Bar-David²,

Ben‐Itzhak³

et al. 1999

J. Phys. B: At. Mol. Opt. Phys.

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“…It has a large (33.2 kcal/mol) barrier to dissociation and a very short He−He distance of 0.704 Å, which is shorter than both the H−H bond of the hydrogen molecule 9 and “the world's shortest bond” 26 of the H−D molecule. A number of other noble gas diatomic dications, such as NeXe 2+ , , ArXe 2+ , NeKr 2+ , Ne 2 2+ , 30 NeAr 2+ , , and HeNe 2+ , are known. Other relevant diatomic dications in which at least one of the partners is a noble gas atom include BeHe 2+ , He(Ne)-B 2+ , BeNe 2+ , CNe 2+ , NNe 2+ , SiNe 2+ , , MgNe 2+ , NeAr 2+ , BeAr 2+ , BAr 2+ , CAr 2+ , ,, NAr 2+ , Ar 2 2+ …”

Section: A 12-dications: Paradoxes and World Recordsmentioning

confidence: 99%

1,2-Dications in Organic Main Group Systems

et al. 2002

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“…The same approach was used by Ben-Itzhak and co-workers for evaluating the tunneling rates of the ground state of the light isotope 3 He 40 Ar 2+ . 92 For vibrational levels v = 0-6 the authors compute life times larger than 1 ms, relying on parametrized PECs calculated for other isoelectronic RG dimers.…”

Section: Stability Of Dications and Life Timesmentioning

confidence: 99%

[MLn]2+ doubly charged systems: modeling, bonding, life times and unimolecular reactivity

Corral

Yáñez

2011

Phys. Chem. Chem. Phys.

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Doubly charged species in the gas phase have been an oddity for many years, but the possibility of generating and detecting them with the new available experimental techniques has faced the scientific community with challenging questions regarding their stability, bonding and reactivity. In this paper we analyze, mainly from a theoretical perspective, these questions for the particular subset of [ML(n)](2+) dications, where M is a metal and L an organic or inorganic ligand. Special attention is devoted to the challenges associated with their theoretical description, in particular as far as their bonding and their life times are concerned. A survey of their unimolecular reactivity is also presented as well as a discussion of the information available on dication affinities, and how they correlate with proton affinities or monocation affinities in general.

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Experimental evidence for long-lived HeAr2+ rare-gas dimers

Cited by 12 publications

References 28 publications

Formation of long-lived CD_n²⁺and CH_n²⁺dications

Formation of long-lived CD_n²⁺and CH_n²⁺dications

1,2-Dications in Organic Main Group Systems

[MLn]2+ doubly charged systems: modeling, bonding, life times and unimolecular reactivity

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Experimental evidence for long-lived HeAr2+ rare-gas dimers

Cited by 12 publications

References 28 publications

Formation of long-lived CDn2+and CHn2+dications

Formation of long-lived CDn2+and CHn2+dications

1,2-Dications in Organic Main Group Systems

[MLn]2+ doubly charged systems: modeling, bonding, life times and unimolecular reactivity

Contact Info

Product

Resources

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Formation of long-lived CD_n²⁺and CH_n²⁺dications

Formation of long-lived CD_n²⁺and CH_n²⁺dications