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Reconstruction of Two-Dimensional Spectra from One-Dimensional Projections-Examples from Solid State NMR

Das, Bibhuti B and Ramanathan, KV (2014) Reconstruction of Two-Dimensional Spectra from One-Dimensional Projections-Examples from Solid State NMR. In: JOURNAL OF THE INDIAN INSTITUTE OF SCIENCE, 94 (4). pp. 473-484.

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Abstract

The use of Projection Reconstruction (PR) to obtain two-dimensional (2D) spectra from one-dimensional (1D) data in the solid state is illustrated. The method exploits multiple 1D spectra obtained using magic angle spinning and off-magic angle spinning. The spectra recorded under the influence of scaled heteronuclear scalar and dipolar couplings in the presence of homonuclear dipolar decoupling sequences have been used to reconstruct J/D Resolved 2D-NMR spectra. The use of just two 1D spectra is observed sufficient to reconstruct a J-resolved 2D-spectrum while a Separated Local Field (SLF) 2D-NMR spectrum could be obtained from three 1D spectra. The experimental techniques for recording the 10 spectra and procedure of reconstruction are discussed and the reconstructed results are compared with 20 experiments recorded in traditional methods. The application of the technique has been made to a solid polycrystalline sample and to a uniaxially oriented liquid crystal. Implementation of PR-NMR in solid state provides high-resolution spectra as well as leads to significant reduction in experimental time. The experiments are relatively simple and are devoid of several technical complications involved in performing the 2D experiments.

Item Type: Journal Article
Additional Information: Copy right for this article belongs to the INDIAN INST SCIENCE, INDIAN INST SCIENCE, BANGALORE 560012, INDIA
Department/Centre: Division of Chemical Sciences > NMR Research Centre (Formerly Sophisticated Instruments Facility)
Depositing User: Id for Latest eprints
Date Deposited: 13 Jan 2015 04:57
Last Modified: 13 Jan 2015 04:57
URI: http://eprints.iisc.ac.in/id/eprint/50645

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