Fluorine-Free Organoxenon Chemistry:  HXeCCH, HXeCC, and HXeCCXeH

Khriachtchev, Leonid; Tanskanen, Hanna; Lundell, Jan; Pettersson, Mika; Kiljunen, Harri; Räsänen, Markku

doi:10.1021/ja034485d

Cited by 179 publications

(187 citation statements)

References 17 publications

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“…To remind ourselves, HKrCC was reported to be an unstable species. ), which is also observed for the Xe/Kr pairs of other noble-gas hydrides such as HNgCl, 44 HNgCN, 45 HNgC 3 N, 9 HNgCCH, [19][20][21] and HNgC 4 H. 46 The D-Xe stretching band of DXeCCF shifts upon deuteration from 1548 to 1121.5 cm -1 , which features a proper H/D frequency ratio of 1.380. It is worth noting that the absorption of DXeCCF is very close to one of the HXeD bands;…”

Section: Discussionmentioning

confidence: 64%

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Matrix-Isolation and ab Initio Study of HNgCCF and HCCNgF Molecules (Ng = Ar, Kr, and Xe)

et al. 2010

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We report three new noble-gas molecules prepared in low-temperature Kr and Xe matrices from the HCCF precursor by UV photolysis and thermal annealing. The identified molecules are two noble-gas hydrides HNgCCF (Ng ) Kr and Xe) and a molecule of another type, HCCKrF. These molecules are assigned with the help of ab initio calculations. All strong absorptions predicted by theory are found in experiments with proper deuteration shifts. The experiments and theory suggest a higher stability against dissociation of HNgCCF molecules compared to HNgCCH reported previously. Surprisingly, only very tentative traces of HCCXeF, which is computationally very stable, are found in experiments. No strong evidence of similar argon compounds is found here.

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Section: Discussionmentioning

confidence: 64%

“…[19][20][21] Our data suggest the energetic stabilization of the HNgCCF species compared to HNgCCH. This is evidenced by the experimental H-Ng stretching bands that are at 1384 and 1548 cm -1 for HKrCCF and HXeCCF, respectively, whereas they are at lower frequencies (1241.5 and 1486 cm -1 ) for HKrCCH and HXeCCH, respectively.…”

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confidence: 99%

Matrix-Isolation and ab Initio Study of HNgCCF and HCCNgF Molecules (Ng = Ar, Kr, and Xe)

et al. 2010

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“…radicals (and, correspondingly, HXCCXeH formed by their reactions) in the case of radiolysis [33], even at high doses. These species can be produced with high yields using photochemical dissociation of acetylene, especially at prolonged photolysis [58,59]. The precursor is a Xe-C 2 complex, which is easily detected by IR spectroscopy.…”

Section: Radiation-chemical Synthesis Of Xenon Hydridesmentioning

confidence: 99%

The radiation-induced chemistry in solid xenon matrices

Feldman

Kobzarenko

Orlov

et al. 2012

Low Temperature Physics

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The paper presents an overview of recent studies on the radiation-chemical transformations of guest molecules in solid xenon induced by fast electrons and x-ray irradiation. Specific features of the experimental approach based on combination of matrix isolation IR and EPR spectroscopy are briefly outlined (with particular impact on using monoisotopic and isotopically enriched xenon matrices). The results reveal rich and diverse radiation-induced chemistry in solid xenon, which is considered in the following major aspects: (1) matrix-induced and matrix assisted transformations of the primary guest radical cations; (2) production and dynamics of hydrogen atoms; (3) formation of xenon hydrides. Finally, preliminary results on the radiation-induced generation of oxygen atoms and ions in solid xenon are presented.

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“…The instability of HNgY in water is demonstrated for four experimentally known compounds: HXeBr, 1 HXeCCH, [17][18][19] HXeOH 20 and HXeOXeH. 21 A detailed analysis for the destabilization mechanism and comparison to experimental results are given for the water based HXeOH and HXeOXeH molecules.…”

Section: Introductionmentioning

confidence: 96%

Destabilization of noble-gas hydrides by a water environment: calculations for HXeOH@(H2O)n, HXeOXeH@(H2O)n, HXeBr@(H2O)n, HXeCCH@(H2O)n

Tsivion

Räsänen

Gerber

2013

Phys. Chem. Chem. Phys.

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HNgY molecules are chemically-bound compounds of a noble-gas atom (Ng) with a hydrogen and with an electronegative group Y. There is considerable current interest in the stability of these species in different types of media. The kinetic stability of several compounds, HXeOH, HXeOXeH, HXeBr and HXeCCH, in water clusters is explored by ab initio calculations. It is found that the kinetic stability of the compounds is reduced by the water environment, generally falling off with the number of H 2 O molecules. For a relatively modest number of water molecules, the compounds decompose spontaneously. Implications of the results for storage of HNgY in molecular media are discussed.

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Fluorine-Free Organoxenon Chemistry: HXeCCH, HXeCC, and HXeCCXeH

Cited by 179 publications

References 17 publications

Matrix-Isolation and ab Initio Study of HNgCCF and HCCNgF Molecules (Ng = Ar, Kr, and Xe)

Matrix-Isolation and ab Initio Study of HNgCCF and HCCNgF Molecules (Ng = Ar, Kr, and Xe)

The radiation-induced chemistry in solid xenon matrices

Destabilization of noble-gas hydrides by a water environment: calculations for HXeOH@(H2O)n, HXeOXeH@(H2O)n, HXeBr@(H2O)n, HXeCCH@(H2O)n

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