KrF2 Research Articles

A new method for the preparation of krypton difluoride

A new method for the preparation of krypton difluoride

Bonding in krypton difluoride

Ab initio calculations on krypton difluoride have been used to obtain contour plots of the valence shell molecular orbitals. They illustrate the three-centre bond in the molecule. The one electron orbital energies are compared with the photoelectron spectrum and with other theoretical results.

New krypton difluoride adducts

The adducts KrF2·TaF5 and KrF2·2MF5(M = Ta, Nb) have been prepared and their Raman spectra obtained at low temperature; 2KrF2·MF5 adducts were not isolated but possible evidence for Kr2F3+ in solution has been obtained.

Crystal Structure of Krypton Difluoride at -80°C

Krypton difluoride is tetragonal, space group P4(2)/ mnm, with two linear molecules per unit cell aligned in planes perpendicular to the tetrad axes. The alignment alternates by 90 degrees between successive planes. The kryptonfluorine bond distance is 1.89 +/- 0.02 angstroms.

Electronic structure and properties of krypton difluoride

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTElectronic structure and properties of krypton difluoridePaul S. Bagus, Bowen Liu, and Henry F. Schaefer IIICite this: J. Am. Chem. Soc. 1972, 94, 19, 6635–6641Publication Date (Print):September 1, 1972Publication History Published online1 May 2002Published inissue 1 September 1972https://doi.org/10.1021/ja00774a011RIGHTS & PERMISSIONSArticle Views94Altmetric-Citations25LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (815 KB) Get e-Alerts Get e-Alerts

The molecular orbital energy levels and bonding in krypton difluoride

The valence level photoelectron spectrum of KrF2 indicates an identical M.O. ordering to that of XeF2 and a remarkable similarity of orbital energies.

Additions and Corrections - The Structure of Krypton Difluoride

Additions and Corrections - The Structure of Krypton Difluoride

Mass spectrum and molecular energetics of krypton difluoride

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMass spectrum and molecular energetics of krypton difluorideP. A. Sessa and H. A. McGee Jr.Cite this: J. Phys. Chem. 1969, 73, 6, 2078–2080Publication Date (Print):June 1, 1969Publication History Published online1 May 2002Published inissue 1 June 1969https://doi.org/10.1021/j100726a079RIGHTS & PERMISSIONSArticle Views30Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-Alerts

Structure of krypton difluoride

Structure of krypton difluoride

Absence of Fermi Resonance in Krypton Difluoride

Absence of Fermi Resonance in Krypton Difluoride

Heat of formation of krypton difluoride

Heat of formation of krypton difluoride

The Heat of Formation of Krypton Difluoride1

The Heat of Formation of Krypton Difluoride¹

Photochemical Formation of Krypton Difluoride from Krypton and Fluorine or Oxygen Difluoride

Photochemical Formation of Krypton Difluoride from Krypton and Fluorine or Oxygen Difluoride

Infrared and Raman Spectra of Krypton Difluoride

The infrared and Raman spectra of KrF2 vapor have been obtained. They clearly indicate a linear and symmetric molecule with the symmetric stretching frequency at 449 cm−1, the asymmetric stretching frequency at 588 cm−1, and the bending frequency at 232.6 cm−1. The force constants are fr=2.46, frr=−0.20, and fα=0.21 mdyn/Å. The negative bond—bond interaction constant can be explained neither by valence bond models nor by a simple molecular orbital model.

The Preparation and Nuclear Magnetic Resonance of Krypton Difluoride1

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Preparation and Nuclear Magnetic Resonance of Krypton Difluoride1F. Schreiner, J. G. Malm, and J. C. HindmanCite this: J. Am. Chem. Soc. 1965, 87, 1, 25–28Publication Date (Print):January 1, 1965Publication History Published online1 May 2002Published inissue 1 January 1965https://doi.org/10.1021/ja01079a006RIGHTS & PERMISSIONSArticle Views129Altmetric-Citations57LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (499 KB) Get e-Alerts Get e-Alerts

Krypton Difluoride: Preparation and Handling

Krypton difluoride was prepared by irradiation of krypton and fluorine in an electron beam (1.5 Mev) at -150 degrees C. The compound is a white crystalline solid, stable only at temperatures below about -30 degrees C.

Krypton Difluoride: Preparation and Handling

Krypton difluoride was prepared by irradiation of krypton and fluorine in an electron beam (1.5 Mev) at -150°C. The compound is a white crystalline solid, stable only at temperatures below about -30°C.

Nonlinear Diverging Waves

N. W. McLachlan and A. L. Meyers [Proc. Phys. Soc. (London) 47, 644 (1935)] and K. A. Naugol'nykh [Soviet Phys.—Acoustics 5, 79 (1959)] have obtained solutions valid to second order in the wave amplitude for spherically symmetric waves. We have generalized their results and obtained solutions for nonspherically symmetric waves. If the first order density wave satisfying the linear wave equation is taken to be ρ1 = (A/r)e−i(ωt−kr) × f(θ,φ), we find the second-order correction to the density to be ρ2 = −12 iρ0−1kA2r[ln(rr0)][2+c0−2ρ0(d2pdρ2)ρ=ρ0]×e−2t(ωt−kr)f2(θ,φ). This result is subject to the restrictions that kr≫1 and that |∇f| ≪k. This result corresponds to the solution found in the literature for the special case of the spherically symmetric wave, f(θ,φ) = 1. (This work was supported jointly by the U. S. Office of Naval Research and the Aeronautical Systems Division, Air Research and Development Command, U. S. Air Force.)