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Theoretical calculation of 13C chemical shielding anisotropy in some organic compounds

โœ Scribed by Isao Ando; Atsuo Nishioka; Masahiro Kondo


Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
331 KB
Volume
25
Category
Article
ISSN
0009-2614

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โœฆ Synopsis


The 13C chemical shielding anisotropies of benzene, toluene, he~~e~yl~a~ne and acetone molecules are calculated theoretically by a linear combination of gauge invariant atomic orbitals -molecular orbital theory using the MIND0 method.


๐Ÿ“œ SIMILAR VOLUMES


Chemical shielding anisotropy of 13C and
โœ S. Kaplan; A. Pines; R.G. Griffin; J.S. Waugh ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 248 KB

Hi& resolution 13C and l5 N NMR spectra fiave been obtained for powdered C&CN. The presence of resolved dip&r structure in the ' 3 C spectra permits the cancIusion that the symmetry axis of the \* 3C shielding tensor lies

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โœ Jelena ล epa; R.J. Gorte; B.H. Suits; David White ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 459 KB

The principal elements of the axially symmetric nitrile ~3C chemical shift tensor, and the C-=N bond distance of solid CH3CN have been determined from both static and sample spinning NMR experiments at 78 and 140 K. The spectra show no significant differences between the a and /3 forms of the solid

Calculation of some 13C chemical shifts
โœ C. Collier; G. A. Webb ๐Ÿ“‚ Article ๐Ÿ“… 1979 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 219 KB

## Abstract Calculations based on Pople's independent electron model, with CNDO/S and INDO/S parameterizations, are reported for some ketenimines and carbodiimides. The unusually large shielding of the central carbon uncleus is accounted for by means of the various electronic transitions which cont