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A Multi-standard Approach for GIAO 13C NMR Calculations

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Sarotti, Ariel M., Pellegrinet, Silvina C.·2009·The Journal of Organic Chemistry

Abstract

The influence of the reference standard employed in the calculation of (13)C NMR chemical shifts was investigated over a large variety of known organic compounds, using different quantum chemistry methods and basis sets. After detailed analysis of the collected data, we found that methanol and benzene are excellent reference standards for computing NMR shifts of sp(3)- and sp-sp(2)-hybridized carbon atoms, respectively. This multi-standard approach (MSTD) performs better than TMS in terms of accuracy and precision and also displays much lower dependence on the level of theory employed. The use of mPW1PW91/6-31G(d)//mPW1PW91/6-31G(d) level is recommended for accurate (13)C NMR chemical shift prediction at low computational cost.

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Metadata

Authors
Sarotti, A. M., & Pellegrinet, S. C.
Venue
The Journal of Organic Chemistry
Published
2009-09-02
Volume
74
Issue
19
Pages
7254-7260
ISSN
  • 0022-3263 (ISSN-L)
  • 1520-6904
OpenAlex
W1994621794
Cited by
223
References
0
FWCI
5.00
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: A Multi-standard Approach for GIAO 13C NMR Calculations. https://app.cochat.ai/papers/10.1021/jo901234h
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Sarotti, A. M., & Pellegrinet, S. C. (2009). A Multi-standard Approach for GIAO 13C NMR Calculations. The Journal of Organic Chemistry. https://doi.org/10.1021/jo901234h

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