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Electron-Diffraction Investigation of the Hexafluorides of Tungsten, Osmium, Iridium, Uranium, Neptunium, and Plutonium

Kimura, Masao and Schomaker, Verner and Smith, Darwin W. and Weinstock, Bernard (1968) Electron-Diffraction Investigation of the Hexafluorides of Tungsten, Osmium, Iridium, Uranium, Neptunium, and Plutonium. Journal of Chemical Physics, 48 (9). pp. 4001-4012. ISSN 0021-9606. https://resolver.caltech.edu/CaltechAUTHORS:20161017-111310599

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Abstract

An electron‐diffraction investigation has been made by the sector–microphotometer method on WF_6, OsF_6, IrF_6, UF_6, NpF_6, and PuF_6. The photographs of all these compounds reflect a phase shift which if not accounted for leads to asymmetric structures for the molecules. It sets in at smaller values of s=4πλ^(−1) sin (θ/2) the heavier the molecule and the greater the electron wavelength. There is good evidence for the symmetrical octahedral structure of all the compounds. The metal–fluorine distances were found to be 1.833 Å (W–F), 1.831 Å (Os–F), 1.830 Å(Ir–F), 1.996 Å (U–F), 1.981 Å (Np–F), and 1.971 Å (Pu–F), with estimated limits of error of ±0.008 Å except for ±0.010 Å for Pu–F.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.1669727DOIArticle
http://scitation.aip.org/content/aip/journal/jcp/48/9/10.1063/1.1669727PublisherArticle
http://resolver.caltech.edu/CaltechETD:etd-02132006-132126Related ItemPhD. thesis, D. W. Smith
Additional Information:© 1968 American Institute of Physics. (Received 9 August 1967) This work was supported in part by the U.S. Office of Naval Research and was performed in part under the auspices of the U.S. Atomic Energy Commission. This paper is based in part on D. W. Smith's Ph.D. thesis, California Institute of Technology, 1958.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Atomic Energy CommissionUNSPECIFIED
Eastman Kodak CompanyUNSPECIFIED
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Gates and Crellin Laboratories of Chemistry3544
Issue or Number:9
Record Number:CaltechAUTHORS:20161017-111310599
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161017-111310599
Official Citation:Electron‐Diffraction Investigation of the Hexafluorides of Tungsten, Osmium, Iridium, Uranium, Neptunium, and Plutonium Kimura, Masao and Schomaker, Verner and Smith, Darwin W. and Weinstock, Bernard, The Journal of Chemical Physics, 48, 4001-4012 (1968), DOI:http://dx.doi.org/10.1063/1.1669727
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71173
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:17 Oct 2016 19:47
Last Modified:03 Oct 2019 16:04

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