Abstract
Abstract The ESR spectra of the ion-pair complexes of the m-iodonitrobenzene anion with alkali and alkaline earth cations were measured. Cation-induced variations in the nitrogen and proton splitting constants were found. When the observed alkali metal splittings were related to the back-transferred charge, ρ, on the ns-shell of each metal, ρ increased in the sequence: Li<Na<K<Rb<Cs at 20°C. The solvent and the temperature effects on alkali-metal splitting varied with the alkali metal. The Cs and Rb splitting constants increased in the sequence: DME<THF<THP solutions, and were independent of the temperature. The Na and Li splitting constants decreased in the above sequence of solvents. With a lowering of the temperature, the Na splitting constant decreased while the Li splitting constant increased. The K splitting constant was independent of both the temperature and the solvent. These results were found in the ion pairs of other halogeno-nitrobenzenes, also.
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.
