## Abstract The ^13^C chemical shifts and one‐bond carbon‐hydrogen coupling constants have been obtained for some hydroxycoumarins and their corresponding acetoxy and methoxy derivatives. The changes in the one‐bond carbon‐hydrogen coupling constants resulting from the conversion of a hydroxy group
Solid-state NMR studies of 1,3-imidazolidine-2-selenone and some related compounds
✍ Scribed by Mohamed I. M. Wazeer; Anvarhusein A. Isab; Herman P. Perzanowski
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 124 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.1305
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✦ Synopsis
Abstract
Solid‐state cross‐polarization magic angle spinning ^13^C, ^77^Se and ^15^N NMR spectra were recorded for 1,3‐imidazolidine‐2‐selenone, its N‐substituted derivatives and some related compounds. The spinning sideband manifold intensities were used to obtain principal values of ^13^C and ^77^Se chemical shift tensors. Large selenium chemical shift anisotropies were observed for these selenones. Copyright © 2003 John Wiley & Sons, Ltd.
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