## Abstract ^1^H and ^13^C NMR chemical shift calculations using the density functional theory–gauge including/invariant atomic orbitals (DFT–GIAO) approximation at the B3LYP/6‐311G++(d,p) level of theory have been used to assign both natural diastereoisomers of 6β‐hydroxyhyoscyamine. The theoretic
1H and 13C NMR chemical shift assignments of spiro-cycloalkylidenehomo- and methanofullerenes by the DFT–GIAO method
✍ Scribed by L. M. Khalilov; A. R. Tulyabaev; V. M. Yanybin; A. R. Tuktarov
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 353 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0749-1581
- DOI
- 10.1002/mrc.2756
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✦ Synopsis
Abstract
The ^1^H and ^13^C NMR chemical shifts of spiro‐cycloalkylidene[60]fullerenes were assigned using experimental NMR data and the Density Functional Theory (DFT)–Gauge Independence Of Atomic Orbitals method (GAIO) calculation method in the Perdew Burke Ernzerhof (PBE)/3z approach. The calculated values of the ^13^C NMR chemical shifts adequately reproduce the experimental values at this quantum chemistry approach. Similar assignments will be helpful for ^13^C NMR spectral analysis of homo‐ and methano[60]fullerene derivatives for structure elucidation and to determine the influence of fullerene frames on substituents and the influence of substituents on fullerene cores. Copyright © 2011 John Wiley & Sons, Ltd.
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