Abstract
Electron paramagnetic resonance (EPR) spectroscopy has been employed to characterize the hydrogen-(H-) bonded state of the mixed-ligand low-spin complex Fe(TPP) (OMe) (NMeIm), which is formed upon mixing of Fe(TPP) (OMe) with NMeIm in Me2SO-MeOH. Two spectrally distinct low-spin species, designated A and B in increasing order of g anisotropy, were detected depending upon the MeOH concentration in the solvent. The two low-spin species differ in degree of H-bond formation between the coordinated MeO- and the solvent MeOH. The H-bond formation proceeds in one step, by EPR criteria, A and B being regarded as in the initial and final H-bonded states, respectively. The H-bonding interaction results in a decreased crystal field around the iron, thereby causing the tetragonal and rhombic splittings in the t2 orbitals to decrease on going from A to B.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
