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Cited by 163

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Hybrid Density Functional Methods Empirically Optimized for the Computation of 13C and 1H Chemical Shifts in Chloroform Solution

Wiitala, Keith W., Hoye, Thomas R., Cramer, Christopher J.·2006·Journal of Chemical Theory and Computation

Abstract

Two hybrid generalized-gradient approximation density functionals, WC04 and WP04, are optimized for the prediction of (13)C and (1)H chemical shifts, respectively, using a training set of 43 molecules in chloroform solution. Tests on molecules not included in the training set, namely six stereoisomeric methylcyclohexanols and a β-lactam antibiotic, indicate the models to be robust and moreover to provide results more accurate than those from equivalent B3LYP, PBE1, or mPW1PW91 calculations, particularly for the prediction of downfield resonances in nuclear magnetic resonance spectra. However, linear regression of the B3LYP, PBE1, and mPW1PW91 predicted values on the experimental data improves the accuracy of those models so that they are comparable to WC04 and WP04.

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Crossref · 10.1021/ct6001016

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Metadata

Authors
Wiitala, K. W., Hoye, T. R., & Cramer, C. J.
Venue
Journal of Chemical Theory and Computation
Published
2006-06-01
Volume
2
Issue
4
Pages
1085-1092
ISSN
  • 1549-9618 (ISSN-L)
  • 1549-9626
OpenAlex
W2122871402
Cited by
163
References
1
FWCI
3.01
Type
journal article
Language
en
Open access
closed

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