Abstract
AbstractWe examine the performance of a recently developed nonlocal density functional in predicting a model noncovalent interaction, namely the weak bond between an aromatic π system and an aliphatic CH group. The new functional is a significant improvement over traditional density functionals, providing results which compare favorably to high‐level quantum‐chemistry techniques, but at considerably lower computational cost. Interaction energies in several model CH/π systems are in good general agreement with coupled‐cluster calculations, though equilibrium distances are consistently overpredicted when using the revPBE functional for exchange. The new functional predicts changes in energy upon addition of halogen substituents correctly.
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Dates
Type | When |
---|---|
Created | 17 years, 5 months ago (March 26, 2008, 12:52 p.m.) |
Deposited | 1 year, 10 months ago (Oct. 10, 2023, 11:45 p.m.) |
Indexed | 3 months, 4 weeks ago (April 28, 2025, 12:49 p.m.) |
Issued | 17 years, 4 months ago (April 11, 2008) |
Published | 17 years, 4 months ago (April 11, 2008) |
Published Online | 17 years, 4 months ago (April 11, 2008) |
Published Print | 17 years, 4 months ago (April 21, 2008) |
@article{Hooper_2008, title={Predicting CH/π Interactions with Nonlocal Density Functional Theory}, volume={9}, ISSN={1439-7641}, url={http://dx.doi.org/10.1002/cphc.200700715}, DOI={10.1002/cphc.200700715}, number={6}, journal={ChemPhysChem}, publisher={Wiley}, author={Hooper, Joe and Cooper, Valentino R. and Thonhauser, Timo and Romero, Nichols A. and Zerilli, Frank and Langreth, David C.}, year={2008}, month=apr, pages={891–895} }