SOLVENT EFFECTS ON THE INFRARED FREQUENCY OF INORGANIC CARBONYL AND NITROSYL BANDS,
Abstract
The infrared spectra of a number of transition metal carbonyl and nitrosyl compounds were recorded in a series of solvents. The behavior of the various bands is discussed in terms of the relative frequency shift plots of Bellamy and co-workers. The magnitude of the frequency shifts is correlated with the relative electron density around the metal atom in a series of compounds in which the ligands are varied. Solvent effects on N-O and C-O vibrators appear to be fairly similar in character, with the N-O band shift greater in magnitude. This is discussed in terms of dative metal-ligand pi-bonding in these complexes. It is found that in molecules with more than one C-O band, the frequency shifts of these bands correlate fairly well among themselves but do not correlate with those of complexes having only one C-O band. The bridging carbonyl band in Co2(CO)8 has a solvent shift behaviovery similar to organic ketones. In certain solvents, however, there is evidence for the formation of the Co(CO)4(-)anion. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 1964
- Accession Number
- AD0615669
Entities
People
- Richard H. Mann
- William Dewitt Horrocks Jr.
Organizations
- Princeton University