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Spectra–structure relationships in carbon-13 nuclear magnetic resonance spectroscopy. Results from a large data base

✍ Scribed by G. W. A. Milne; J. Zupan; S. R. Heller; J. A. Miller


Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
888 KB
Volume
12
Category
Article
ISSN
0749-1581

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✦ Synopsis


Abstract

A link between a substructure searching system and a ^13^C NMR data base has been established and permits the retrieval and examination of the chemical shifts associated with specific substructures. The means by which these searches are accomplished is described and the results from the searches are presented and discussed. The system is interactive, and can be used to locate in the data base the chemical shifts of carbon atoms in precisely defined environments. Alternatively, it may be used to learn the range of the chemical shifts possessed by particular types of carbon atoms, such as N‐methyl or O‐methyl carbons.


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High-resolution solid-state carbon-13 nu
✍ M. Stoltz; D. W. Oliver; P. L. Wessels; A. A. Chalmers 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 795 KB

The solid-state 13C NMR spectra of mofebutazone, phenylbutazone, and oxyphenbutazone monohydrate and anhydrate are presented. The crystal structures of these pyrazolidinedione derivatives, obtained by single-crystal X-ray analysis, were previously reported, revealing distinct differences in crystal