This system will be undergoing maintenance April 18th between 9:00AM and 12:00PM CDT.

Covalency of neptunium(IV) triscyclopentadienyl compounds from Moessbauer spectra Metadata

Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.

Available Formats

Dublin Core: XML Dublin Core: JSON Dublin Core: Text Dublin Core: RDF/XML UNTL: XML Access METS: XML

Title

  • Main Title Covalency of neptunium(IV) triscyclopentadienyl compounds from Moessbauer spectra

Creator

  • Author: Karraker, D.G.
    Creator Type: Personal
  • Author: Stone, J.A.
    Creator Type: Personal

Publisher

  • Name: Savannah River Laboratory
    Place of Publication: Aiken, South Carolina
    Additional Info: Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.

Date

  • Creation: 1978-01-01

Language

  • English

Description

  • Content Description: Isomer shifts measured from the /sup 237/Np Moessbauer spectra of NpCp/sub 3/OR (R = alkyl) NpCp/sub 3/R and NpCpAr (Ar = aryl) are used as a measure of the covalency in Np(IV) ligand bonding. The isomer shifts in NpCp/sub 3//sup n/Bu and NpCp/sub 3/C/sub 6/H/sub 4/C/sub 2/H/sub 5/ show a strong sigma character to the Np--/sup -n/Bu and Np--C/sub 6/H/sub 4/C/sub 2/H/sub 5/ bonds. The sigma character of Np--OR bonding is definite, but less pronounced. The comparatively low covalency in the bonding of NpCp/sub 4/ is ascribed to longer Np--C bonds in NpCp/sub 4/ than in NpCp/sub 3//sup +/ compounds. The /sup 237/Np isomer shift in Np(MeCp)Cl/sub 3/.2THF indicates that the MeCp ligand is sigma-bonded in this compound.
  • Physical Description: 19 pages

Subject

  • Keyword: Organic Compounds
  • Keyword: Radicals
  • Keyword: Ligands
  • Keyword: Isotopes
  • Keyword: Isomer Shift
  • Keyword: Odd-Even Nuclei
  • Keyword: Nuclei
  • Keyword: Alpha Decay Radioisotopes
  • Keyword: Neptunium 237
  • STI Subject Categories: 38 Radiation Chemistry, Radiochemistry, And Nuclear Chemistry
  • Keyword: Alkyl Radicals
  • Keyword: Actinide Isotopes
  • Keyword: Covalence
  • Keyword: Years Living Radioisotopes 400702* -- Radiochemistry & Nuclear Chemistry-- Properties Of Radioactive Materials
  • Keyword: Aryl Radicals
  • Keyword: Radioisotopes
  • Keyword: Neptunium Isotopes
  • Keyword: Chemical Bonds
  • Keyword: Moessbauer Effect
  • Keyword: Organometallic Compounds
  • Keyword: Actinide Nuclei
  • Keyword: Heavy Nuclei

Source

  • Conference: Southeastern meeting of the American Chemical Society, Savannah, GA, USA, 8 Nov 1978

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: DP-MS-78-62
  • Report No.: CONF-781140-2
  • Grant Number: EY-76-C-09-0001
  • Office of Scientific & Technical Information Report Number: 6374227
  • Archival Resource Key: ark:/67531/metadc1208362

Note

  • Display Note: Dep. NTIS, PC A02/MF A01.
Back to Top of Screen