## Abstract The results of __ab initio__ GIAOβCHF ^13^C nuclear shielding calculations for some solid amino acids, performed with the 6β311G\*\* and a locally dense basis set are reported. Comparison of the present calculation with the observed shieldings shows an RMS error of 6.6 ppm. Shieldings o
Ab initio13C nuclear shielding calculations for some hydrocarbons using the GIAO procedure
β Scribed by Hiromichi Kurosu; Graham A. Webb; Isao Ando
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 278 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0749-1581
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β¦ Synopsis
Abstract
The results of some ab initio GIAOο£ΏCHF ^13^C shielding calculations for some hydrocarbons, performed with several basis sets, are reported and compared with experimental data. Optimized and experimental molecular geometries have been used in these calculations. The effect of the choice of basis set and geometric parameters on the calculated shieldings are discussed.
π SIMILAR VOLUMES
## Abstract __Ab initio__ LORG (localized orbital/local origin) shielding calculations were applied to some polyenes and their Schiff bases. Computations were performed as a function of basis set quality. The use of polarization functions in the shielding calculations for these highly polarizable c
This study demonstrates the use of uneven atomic basis sets for ab initio calculations of NMR shielding in the localized orbital/local origin (LORG) approach with norbornenone as the test case. We distinguish between locally dense sets (extended basis on target atom only) and locally saturated sets