114959-07-8Relevant academic research and scientific papers
Resonance Raman Spectra of Dioxygen Adducts of Cobalt Porphyrins. Spectroscopic Manifestation of Vibrationally Coupled Dioxygen and Energy Matching of Interactive Modes
Proniewicz, Leonard M.,Nakamoto, Kazuo,Kincaid, James R.
, p. 4541 - 4545 (1988)
Resonance Raman spectra of dioxygen adducts of cobalt porphyrin complexes with 3,5-dichloropyridine (DCP) are reported.When 16O2, 18O2, and scrambled oxygen (i.e., 16O2:16O18O:18O2) are used, evidence is obtained for vibrational coupling of ν(O-O) with an internal mode of axially coordinated DCP.This coupling is manifested spectroscopically by shifts of the coupled modes from their inherent frequencies and/or by intensity enchancement of the coupled internal mode relative to noncoupled ligand modes.The magnitude of the perturbation is shown to be dependent upon energy matching of the interacting modes through a series of studies in wich the frequency of the ν(O-O) is varied by controlled alterations in structure and solution enviroment.
