Denitrogenation of Transportation Fuels by Zeolites at Ambient Temperature and Pressure

In the Communication “Denitrogenation of Transportation Fuels by Zeolites at Ambient Temperature and Pressure” by A. J. Hernández-Maldonado and R. T. Yang1, the authors presented a Table of Contents schematic similar to that in a related publication.[1] Although it seems that both figures are identical, they differ in that in the former case the adsorbate molecule is pyrrole and in the latter it is thiophene. Both molecules undergo π complexation with CuI–Y zeolites in a similar fashion; however, one is involved in a denitrogenation process and the other in desulfurization. Although the topics covered and results are different, the authors apologize for not cross-referencing the two papers. [1] A. J. Hernández-Maldonado, R.T. Yang, J. Am. Chem. Soc. 2004, 126, 992–993.