Multifrequency Electron Paramagnetic Resonance Spectroscopy of Group Viib Carbonyl Radicals
type: CreativeWork
description: Interest in organometallic 17e('-) free radical systems has increased dramatically due to their potential roles in catalytic processes. Multi-frequency electron paramagnetic resonance spectroscopy studies of (.)Mn(CO)(,3){P(n-Bu)(,3)}(,2), (.)Mn(CO)(,3){P(i-Bu)(,3)}(,2), (.)Mn(CO)(,3){P(i-Pr)(,3)}(,2') (.)Mn(CO)(,3){P(O-i-Pr)(,3)}(,2) and (.)Re(CO)(,3){P(cy)(,3)}(,2) (cy = cyclohexyl) were performed at conventional X-band ((DBLTURN) 9 GHz), S-band ((DBLTURN) 3 GHz) and L-band ((DBLTURN) 1 GHz) frequencies. Computer simulations of the X- and S-band frozen solution spectra as well as room temperature X-band solution spectra were obtained. Anisotropic g-shifts, metal hyperfine, and phosphorus super-hyperfine spin Hamiltonian parameters are reported and compared to values reported for (.)Mn(CO)(,5).
abstract: Interest in organometallic 17e('-) free radical systems has increased dramatically due to their potential roles in catalytic processes. Multi-frequency electron paramagnetic resonance spectroscopy studies of (.)Mn(CO)(,3){P(n-Bu)(,3)}(,2), (.)Mn(CO)(,3){P(i-Bu)(,3)}(,2), (.)Mn(CO)(,3){P(i-Pr)(,3)}(,2') (.)Mn(CO)(,3){P(O-i-Pr)(,3)}(,2) and (.)Re(CO)(,3){P(cy)(,3)}(,2) (cy = cyclohexyl) were performed at conventional X-band ((DBLTURN) 9 GHz), S-band ((DBLTURN) 3 GHz) and L-band ((DBLTURN) 1 GHz) frequencies. Computer simulations of the X- and S-band frozen solution spectra as well as room temperature X-band solution spectra were obtained. Anisotropic g-shifts, metal hyperfine, and phosphorus super-hyperfine spin Hamiltonian parameters are reported and compared to values reported for (.)Mn(CO)(,5).
author: Rattinger, Gail Beth
keywords: Chemistry, Inorganic
date published: 2014-12-15T23:18:21Z
date modified: 2026-07-22T22:26:02Z
provider: University of Illinois - Urbana-Champaign
publisher: Networked Digital Library of Theses and Dissertations
type: WebPage
source organization: University of Illinois at Urbana-Champaign

PropertyValue
property ID: Handle
value: http://hdl.handle.net/2142/70281