Back Cover: Elucidation of Adsorbate Structures and Interactions on Brønsted Acid Sites in H-ZSM-5 by Synchrotron X-ray Powder Diffraction (Angew. Chem. Int. Ed. 20/2016).

The adsorption geometries and interactions of pyridine molecules with the Brønsted acid sites of microporous zeolite H‐ZSM‐5 were studied. In their Communication on page 5981 ff. S. C. E. Tsang et al. report on the adsorption of pyridine molecules in H‐ZSM‐5. The image was generated by an in situ synchrotron X‐ray diffraction technique combined with Rietveld refinement, which is based on the slight but significant alternation in scattering parameters of framework atoms modified by the pyridine molecules. [ABSTRACT FROM AUTHOR]