Some shielding calculations, using Pople's SOS model, are reported for B, C, N, F, P and Si as a function of changes in bond length and pyramidal bond angle. In all cases considered, the shielding is predicted to decrease as the bond length increases, which is in line with the available experimental
Some calculations of the solvent dependences of phosphorus nuclear shielding
β Scribed by B. Nalamphun; G. A. Webb
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 367 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0749-1581
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π SIMILAR VOLUMES
## Abstract We perform a systematic examination on the dependence of the calculated nuclear magnetic shielding constants on the chosen geometry for a selective set of density functional methods of B3LYP, PBE0, and OPBE. We find that the OPBE exchangeβcorrelation functional performs remarkably well
## Abstract The ^13^C nuclear shielding in methanol, ethanol and isopropanol has been measured over the temperature range 186β325 K. Corrections to the observed shifts have been made to allow for the temperature dependence of the shielding of the external tetramethylsilane reference and for the tem
## Abstract The results of some SCPT and SOS calculations of ^1^__J__(CH), ^1^__J__(FC), ^2^__J__(FH), ^3^__J__(FH), ^3^__J__(FF) and ^1^__J__(CC) in a variety of solvents are reported. The calculations employ the solvaton model and INDO parameters. In almost all cases the coupling is predicted to
## The effects of including correlation in the calculation of phosphorus nuclear magnetic resonance (NMR) chemical shielding has been investigated for a variety of molecules in the Hartree-Fock, second-order Mder-Plesset (MP2), and estimated infinite-order Merller-Plesset theory ab initio approaches