Abstract
Relaxation effects are studied in the steady-state proton-proton double resonance spectra of a symmetrical three spin system of the type AB2, formed by the ring protons of 2,6-dibromoaniline. The experiments were performed on a Varian HR-100 high resolution N.M.R. spectrometer suitably modified for field-frequency locking and added by the usual equipment for the purpose of frequency-sweep double resonance. The sample used is a 20 per cent solution in CCl4, purified and sealed in vacuum. The parameters describing the single resonance spectrum of the molecule were obtained to be and J AB=7·95±0·1 hz. Double resonance spectra obtained by irradiating each of the eight transitions in the single resonance spectrum, show significant relaxation effects for amplitudes of irradiation varying from 0·1 hz to 9·0 hz. These features were analysed using the density matrix theory of double resonance. The inhomogeneity of the applied magnetic field is found to be an important factor in the interpretation of the relaxation...
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.
