Covalency in Actinide 5f Compounds: The ESCA Spectra of Diphthalocyaninato-Uranium (IV) and -Thorium(IV).

Abstract

The nature of the bonding in both UPc2 and ThPc2 (Pc = phthalocyaninato ion) has been studied by x-ray photoelectron spectroscopy. While the ESCA spectrum of each of the U(4f) levels reveals two electron 'shake-up' satellites characteristic of 5f-orbital participation in bonding, i.e. covalency, the corresponding Th(4f) levels do not. The two 'shake-up' satellite photopeaks observed in the U(4f) spectra probably arise from electron charge-transfer from molecular orbitals of both metal and ligand character to the corresponding antibonding molecular orbitals. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 26, 1976
Accession Number
ADA025863

Entities

People

  • James C. Carver
  • Minoru Tsutsui
  • Ronald Dubois

Organizations

  • Texas A&M University

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Actinides
  • Artificial Satellites
  • Charge Transfer
  • Electrons
  • Metals
  • Personality
  • Photoelectrons
  • Spectra
  • Spectroscopy
  • X Ray Photoelectron Spectroscopy
  • X Rays

Fields of Study

  • Chemistry

Readers

  • Aquatic Ecology
  • Materials Science and Engineering.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Space