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Int. J. Mol. Sci. 2000, 1(4), 75-83; doi:10.3390/ijms1040075

Modeling NMR chemical shifts: crystal potential derived point charge (CPPCh) model to calculate solid state effects on 31P chemical shifts tensors

1
Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. I, (1428) Buenos Aires, Argentina
2
Center for High Performance Computing, University of Utah, Salt Lake City, UT 84112, USA
*
Authors to whom correspondence should be addressed.
Received: 9 April 2000 / Accepted: 10 October 2000 / Published: 13 October 2000
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Abstract

This paper presents a new method to calculate solid-state effects on NMR chemical shifts. Using full crystal potentials, this new method (CPPCh) eliminates the need to arbitrarily select the point charges that are included in the calculations of the NMR chemical shieldings to take into account intermolecular effects. By eliminating the arbitrary selection of the point charges, the method provides a mechanism to systematically improve the simulation of intermolecular effects on chemical shielding calculations. This new method has been applied to the calculation of the 31P NMR chemical shifts tensors in P4S3. The shielding calculations were done using the DFT approach with the BLYP gradient corrected exchange correlation functional. This method was selected to calculate the 31P chemical shifts because it includes electron correlation effects at a reasonable cost.
Keywords: chemical shielding calculations; charge point models; NMR solid state effects chemical shielding calculations; charge point models; NMR solid state effects
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Schneider, D.M.; Caputo, M.C.; Ferraro, M.B.; Facelli, J.C. Modeling NMR chemical shifts: crystal potential derived point charge (CPPCh) model to calculate solid state effects on 31P chemical shifts tensors. Int. J. Mol. Sci. 2000, 1, 75-83.

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