Electron Delocalization in Paramagnetic Metallocarboranes.

Abstract

The isotropic shifts of the 11B and 13C nuclear resonances in paramagnetic metallocarboranes of the type (C5H5)M(C2BnH(n+2)) and M(C2BnH(n+2))2 where M = Cr(III), Fe(III), Ni(III), Co(III), and n = 9,8,7,6, were evaluated. Electron spin resonance data are also discussed. The mode of electron delocalization is primarily ligand to metal charge transfer, except for icosahedral Co(II), where it is metal to ligand. The extent of delocalization in metallocarboranes is minimal and is primarily localized on the metal bonding face. The results of this study are compared to available data and theories related to paramagnetic metallocenes. (Modified author abstract)

Document Details

Document Type
Technical Report
Publication Date
Dec 28, 1973
Accession Number
AD0773126

Entities

People

  • M. Frederick Hawthorne
  • Richard J. Wiersema

Organizations

  • University of California, Los Angeles

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Charge Transfer
  • Electron Spin Resonance
  • Electrons
  • Magnetic Resonance
  • Metallocenes
  • Motion
  • Nuclear Magnetic Resonance
  • Nuclear Properties
  • Nuclear Resonance
  • Physical Properties
  • Quantum Properties
  • Resonance
  • Spin Resonance

Readers

  • Organic Chemistry
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics