Noble Gas Endohedral Complexes of C60Buckminsterfullerene

Using a fairly structurally flexible and, therefore, very suitable for this type of research, superphane molecule, we demonstrate that the inclusion of a noble gas atom (Ng = He, Ne, Ar, and Kr) inside it and, thus, the formation of the Ng@superphane endohedral complex, leads to its ‘swelling’. Positive values of both the binding and strain energies prove that encapsulation and in turn ‘swelling’ of the superphane molecule is energetically unfavorable and that the Ng⋯C interactions in the interior of the cage are destabilizing, i.e., repulsive. Additionally, negative Mayer Bond Orders indicate the antibonding nature of Ng⋯C contacts. This result in combination with the observed Ng⋯C bond paths shows that the presence of a bond path in the molecular graph does not necessarily prove interatomic stabilization. It is shown that the obtained conclusions do not depend on the computational methodology, i.e., the method and the basis set used. However, on the contrary, the number of bond paths may depend on the methodology. This is yet another disadvantageous finding that does not favor the treatment of bond paths on molecular graphs as indicators of chemical bonds. The Kr@superphane endohedral complex features one of the longest C–C bonds ever reported (1.753 Å).

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Interactions of noble gas atoms. Processes due to elastic scattering

Annales de Physique ◽

10.1051/anphys:01989001405046700 ◽

1989 ◽

Vol 14 (5) ◽

pp. 467-604 ◽

Cited By ~ 26

Author(s):

A.Z. Devdariani ◽

A.L. Zagrebin ◽

K.B. Blagoev

Keyword(s):

Elastic Scattering ◽

Noble Gas

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Collisions of N+2 ions on noble gas atoms I . — Collision induced dissociation of N+2

Journal de Physique ◽

10.1051/jphys:01971003207053300 ◽

1971 ◽

Vol 32 (7) ◽

pp. 533-541 ◽

Cited By ~ 10

Author(s):

P. Fournier ◽

A. Pernot ◽

J. Durup

Keyword(s):

Noble Gas ◽

Collision Induced Dissociation

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Dissociative recombination of molecular ions in noble-gas plasmas

Uspekhi Fizicheskih Nauk ◽

10.3367/ufnr.0162.199201b.0035 ◽

1992 ◽

Vol 162 (1) ◽

pp. 35 ◽

Cited By ~ 40

Author(s):

V.A. Ivanov

Keyword(s):

Noble Gas ◽

Dissociative Recombination ◽

Molecular Ions

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DFT+ U Study of the Thermal Conductivity and Noble Gas Impurities in Uranium Dioxide

SSRN Electronic Journal ◽

10.2139/ssrn.3310275 ◽

2019 ◽

Author(s):

E. Torres ◽

T. P. Kaloni

Keyword(s):

Thermal Conductivity ◽

Uranium Dioxide ◽

Noble Gas

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A Petrologic and Noble Gas Isotopic Study of New Basaltic Eucrite Grove Mountains 13001 from Antarctica

Minerals ◽

10.3390/min11030279 ◽

2021 ◽

Vol 11 (3) ◽

pp. 279

Author(s):

Chuantong Zhang ◽

Bingkui Miao ◽

Huaiyu He ◽

Hongyi Chen ◽

P. M. Ranjith ◽

...

Keyword(s):

Noble Gas ◽

Research Work ◽

Cosmic Ray ◽

Parent Body ◽

Chemical Compositions ◽

Isotopic Study ◽

Impact Processes ◽

Antarctic Research ◽

Formation And Evolution ◽

Grove Mountains

Howardite-Eucrite-Diogenite (HED) meteorite clan is a potential group of planetary materials which provides significant clues to understand the formation and evolution of the solar system. Grove Mountains (GRV) 13001 is a new member of HED meteorite, recovered from the Grove Mountains of Antarctica by the Chinese National Antarctic Research Expedition. This research work presents a comprehensive study of the petrology and mineralogy, chemical composition, noble gas isotopes, cosmic-ray exposure (CRE) age and nominal gas retention age for the meteorite GRV 13001. The output data indicate that GRV 13001 is a monomict basaltic eucrite with typical ophitic/subophitic texture, and it consists mainly of low-Ca pyroxene and plagioclase with normal eucritic chemical compositions. The noble gas based CRE age of the GRV 13001 is approximately 29.9 ± 3.0 Ma, which deviates from the major impact events or periods on the HED parent body. Additionally, the U,Th-4He and 40K-40Ar gas retention ages of this meteorite are ~2.5 to 4.0 Ga and ~3.6 to 4.1 Ga, respectively. Based on the noble gases isotopes and the corresponding ages, GRV 13001 may have experienced intense impact processes during brecciation, and weak thermal event after the ejection event at approximately 30 Ma.

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