Abstract
Contact shift and line broadening studies were made on a series of metal ion-dimethylsulfoxide (DMSO) solutions. Unpaired spin density transfer for Cu(DMSO) 6 2+ and Ni (DMSO) 6 2+ complexes is through the σ bonding system while the signs of the electron spin-nuclear spin coupling constants, An, for Co(DMSO) 6 2+, Fe(DMSO) 6 2+ indicate a ligand π-to-metal t 2 g unpaired spin density transfer. Line broadening studies reveal that Co(DMSO) 6 2+ and Mn(DMSO) 6 2+ exchange too fast in DMSO solution to be measured by the NMR technique while Fe(DMSO) 6 3+ and Cr(DMSO) 6 3+ exchange too slowly to be measured. The exchange rate and the ΔH‡ and ΔS‡ of exchange were determined for Cu(DMSO) 6 2+, Ni(DMSO) 6 2+ and Fe(DMSO) 6 2+. The exchange rate order was found to be Fe > Cu > Ni.
Published Version
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.
