Colussi, Agustín J. and Enami, Shinichi (2014) Comment on “Surface Acidity of Water Probed by Free Energy Calculation for Trimethylamine Protonation. Journal of Physical Chemistry C, 118 (5). p. 2894. ISSN 1932-7447. https://resolver.caltech.edu/CaltechAUTHORS:20140326-094348035
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Abstract
Tabe et al. recently argued (on the basis of calculations) that the protonation of trimethylamine (TMA) on the surface of pH ≤ 4 water^2 reflects that TMA is a much weaker base at the surface than in bulk water (pK_(a,TMA) = 9.8) and conjectured that “if another indicator species (X) were used which is less stabilized at the surface than its protonated form (XH+), we would expect an apparently opposite shift of pK_a”. It appears that Tabe et al. have overlooked the experiments we had performed using indicator species covering a wide range of acidity constants, which clearly fail to support their prediction.
| Item Type: | Article | |||||||||
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| Additional Information: | © 2014 American Chemical Society. Received: January 11, 2014. Published: January 14, 2014. Publication Date (Web): January 14, 2014. | |||||||||
| Issue or Number: | 5 | |||||||||
| Record Number: | CaltechAUTHORS:20140326-094348035 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140326-094348035 | |||||||||
| Official Citation: | Comment on “Surface Acidity of Water Probed by Free Energy Calculation for Trimethylamine Protonation” Agustín J. Colussi and Shinichi Enami The Journal of Physical Chemistry C 2014 118 (5), 2894-2894 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 44519 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 26 Mar 2014 19:39 | |||||||||
| Last Modified: | 03 Oct 2019 06:18 |
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