Accession Number:

ADA025863

Title:

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

Descriptive Note:

Technical rept.,

Corporate Author:

TEXAS A AND M UNIV COLLEGE STATION DEPT OF CHEMISTRY

Report Date:

1976-05-26

Pagination or Media Count:

11.0

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 U4f levels reveals two electron shake-up satellites characteristic of 5f-orbital participation in bonding, i.e. covalency, the corresponding Th4f levels do not. The two shake-up satellite photopeaks observed in the U4f spectra probably arise from electron charge-transfer from molecular orbitals of both metal and ligand character to the corresponding antibonding molecular orbitals. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE