The Bonding in Some Bis(Arene)Chromium Compounds as Indicated by UV Photoelectron Spectroscopy.
Abstract
He(I) ultraviolet photoelectron (UV-PES) spectra are reported for several bis(arene)chromium compounds. The arenes concerned are m-trifluoro-methylbenzotrifluoride, p-fluorobenzetrifluoride, p-difluorobenzene, m-dichlorobenzene, fluorobenzene, chlorobenzene, methylbenzoate, p-chlorotoluene, diphenyl ether, toluene, o-xylene, trimethylsilylbenzene, isobutylbenzene, 1,2,3-trimethylbenzene, 1,3,5-trimethylbenzene, and 1,2,4,5-tetremethylbenzene. The spectra have been interpreted using a qualitative perturbation molecular orbital model. The two major findings of the work are: (1) the ionizations from the metal-localized a sub 1g and e sub 2g molecular orbitals are governed primarily by ligand electronegativity, but there is some evidence for the operation of conjugative effects, and (2) the ionization energies of the free and coordinated arenes are quite similar. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 22, 1980
- Accession Number
- ADA094180
Entities
People
- A. H. Cowley
- D. E. Cabelli
- J. J. Lagowski
Organizations
- University of Texas at Austin