Abstract
An approach for the evaluation of the asymmetry parameter, η, of the electric field gradient tensor for spin- 3 2 systems from two-dimensional nutation spectroscopy using the maximum entropy method (MEM) is presented. The superiority of the MEM over the traditional fast Fourier transform (FFT) method is demonstrated in NQR spectral analysis of two-dimensional (2D) data. A comparison of the theoretically simulated 2D spectrum (FFT and MEM) with that recorded experimentally is shown to permit the evaluation of η with improved sensitivity. Use of the MEM in 2D-NQR spectroscopy can lead to sensitivity improvements, reduction of instrumental artefacts and truncation errors, shortened data acquisition times and automatic suppression of noise, while at the same time increasing the resolution. The method has been successfully demonstrated for the two 35Cl sites in polycrystalline 2,4,6-trichloro-1,3,5-triazine (cyanuric chloride).
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.
