A Renaissance in Noble-Gas Chemistry

Christe, Karl O.

doi:10.21236/ada410904

Cited by 12 publications

(13 citation statements)

References 5 publications

(7 reference statements)

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“…ones!) are unlikely to be prepared since we currently do not have a Lewis acid powerful enough to withdraw F -On the position of helium and neon in the Periodic Table of… anion from the neutral HArF molecule (Christe 2001). In other words, the salts bearing NGF ?…”

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On the position of helium and neon in the Periodic Table of Elements

Grochala

2017

Found Chem

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Helium and neon, the two lightest noble gases, have been traditionally positioned by IUPAC in the Group 18 of the Periodic Table of Elements, together with argon, and other unreactive or moderately reactive gaseous elements (krypton, xenon, radon), and oganesson. In this account we revive the old discussion on the possible placement of helium in the Group 2, while preserving the position of neon in Group 18. We provide quantum-chemical arguments for such scenario-as well as other qualitative and quantitative arguments-and we describe previous suggestions in the literature which support it or put it into question. To this author's own taste, He should be placed in Group 2.

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confidence: 99%

On the position of helium and neon in the Periodic Table of Elements

Grochala

2017

Found Chem

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“…However, the known compounds of rare gas atoms are mainly restricted to compounds that contain elements such as oxygen or fluorine, which exhibit a relatively high electronegative character. Recently, xenon chemistry has shown itself to be significant and interesting from the viewpoint of the “missing xenon” phenomenon − and also from the challenging tasks connected to both organic Xe compounds , and simple inorganic Xe compounds − that form the basis of new and efficient materials for the industrial extraction of xenon from air . In addition to these research fields, Xe compounds bonded with metal ions have received much attention from the fundamental chemistry viewpoint.…”

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Direct Information on Structure and Energetic Features of Cu⁺−Xe Species Formed in MFI-Type Zeolite at Room Temperature

Torigoe

Mori

Fujie³

et al. 2010

J. Phys. Chem. Lett.

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The interacted species of Xe with metal ions that are stable at room temperature are not known and are a subject of interest for fundamental chemistry. We have experimentally found a new and stable Xe species, XeCu þ , which was formed at room temperature in a copper ion-exchanged MFI-type zeolite. The presence of a prominent interaction between Cu þ in MFI and Xe, which has a covalent nature, was for the first time evidenced from experimental in situ synchrotron X-ray absorption fine structure and heat of adsorption measurements: the Cu þ -Xe bond length of 2.45 Å and the bonding energy of ca. 60 kJ mol -1 . The bonding nature between Xe and Cu þ in the MFI zeolite was discussed utilizing density functional theory; the observed significant stabilization comes from the d(Cu þ in MFI)-p(Xe) orbital interaction. These new findings may pave a new way to developing fundamental chemistry of Xe compounds.

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“…After almost 20 years, when the Christe’s paper “A renaissance in noble gas chemistry” appeared [ 1 ], we can say that the renaissance still lasts, although to a lesser extent than in the past. Times are changing, and with that, the fields of research in science.…”

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Noble-Gas Chemistry More than Half a Century after the First Report of the Noble-Gas Compound

Mazej

2020

Molecules

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Recent development in the synthesis and characterization of noble-gas compounds is reviewed, i.e., noble-gas chemistry reported in the last five years with emphasis on the publications issued after 2017. XeF2 is commercially available and has a wider practical application both in the laboratory use and in the industry. As a ligand it can coordinate to metal centers resulting in [M(XeF2)x]n+ salts. With strong Lewis acids, XeF2 acts as a fluoride ion donor forming [XeF]+ or [Xe2F3]+ salts. Latest examples are [Xe2F3][RuF6]·XeF2, [Xe2F3][RuF6] and [Xe2F3][IrF6]. Adducts NgF2·CrOF4 and NgF2·2CrOF4 (Ng = Xe, Kr) were synthesized and structurally characterized at low temperatures. The geometry of XeF6 was studied in solid argon and neon matrices. Xenon hexafluoride is a well-known fluoride ion donor forming various [XeF5]+ and [Xe2F11]+ salts. A large number of crystal structures of previously known or new [XeF5]+ and [Xe2F11]+ salts were reported, i.e., [Xe2F11][SbF6], [XeF5][SbF6], [XeF5][Sb2F11], [XeF5][BF4], [XeF5][TiF5], [XeF5]5[Ti10F45], [XeF5][Ti3F13], [XeF5]2[MnF6], [XeF5][MnF5], [XeF5]4[Mn8F36], [Xe2F11]2[SnF6], [Xe2F11]2[PbF6], [XeF5]4[Sn5F24], [XeF5][Xe2F11][CrVOF5]·2CrVIOF4, [XeF5]2[CrIVF6]·2CrVIOF4, [Xe2F11]2[CrIVF6], [XeF5]2[CrV2O2F8], [XeF5]2[CrV2O2F8]·2HF, [XeF5]2[CrV2O2F8]·2XeOF4, A[XeF5][SbF6]2 (A = Rb, Cs), Cs[XeF5][BixSb1-xF6]2 (x = ~0.37–0.39), NO2XeF5(SbF6)2, XeF5M(SbF6)3 (M = Ni, Mg, Zn, Co, Cu, Mn and Pd) and (XeF5)3[Hg(HF)]2(SbF6)7. Despite its extreme sensitivity, many new XeO3 adducts were synthesized, i.e., the 15-crown adduct of XeO3, adducts of XeO3 with triphenylphosphine oxide, dimethylsulfoxide and pyridine-N-oxide, and adducts between XeO3 and N-bases (pyridine and 4-dimethylaminopyridine). [Hg(KrF2)8][AsF6]2·2HF is a new example of a compound in which KrF2 serves as a ligand. Numerous new charged species of noble gases were reported (ArCH2+, ArOH+, [ArB3O4]+, [ArB3O5]+, [ArB4O6]+, [ArB5O7]+, [B12(CN)11Ne]−). Molecular ion HeH+ was finally detected in interstellar space. The discoveries of Na2He and ArNi at high pressure were reported. Bonding motifs in noble-gas compounds are briefly commented on in the last paragraph of this review.

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A Renaissance in Noble-Gas Chemistry

Cited by 12 publications

References 5 publications

On the position of helium and neon in the Periodic Table of Elements

On the position of helium and neon in the Periodic Table of Elements

Direct Information on Structure and Energetic Features of Cu⁺−Xe Species Formed in MFI-Type Zeolite at Room Temperature

Noble-Gas Chemistry More than Half a Century after the First Report of the Noble-Gas Compound

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A Renaissance in Noble-Gas Chemistry

Cited by 12 publications

References 5 publications

On the position of helium and neon in the Periodic Table of Elements

On the position of helium and neon in the Periodic Table of Elements

Direct Information on Structure and Energetic Features of Cu+−Xe Species Formed in MFI-Type Zeolite at Room Temperature

Noble-Gas Chemistry More than Half a Century after the First Report of the Noble-Gas Compound

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Direct Information on Structure and Energetic Features of Cu⁺−Xe Species Formed in MFI-Type Zeolite at Room Temperature