ArticleJournal of the American Chemical Society2015
Differences in the location of guest molecules within zeolite pores as revealed by multilaser excitation confocal fluorescence microscopy: which molecule is where?
Article in Journal of the American Chemical Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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Who cites it
9 citing papers in PubMed.
- Article
- Reversible and Site-Dependent Proton-Transfer in Zeolites Uncovered at the Single-Molecule Level.Journal of the American Chemical Society · 2018Article
- Highly Oriented Growth of Catalytically Active Zeolite ZSM-5 Films with a Broad Range of Si/Al Ratios.Angewandte Chemie (International ed. in English) · 2017Article
- Solvent Polarity-Induced Pore Selectivity in H-ZSM-5 Catalysis.ACS catalysis · 2017Article
- Probing Zeolite Crystal Architecture and Structural Imperfections using Differently Sized Fluorescent Organic Probe Molecules.Chemistry (Weinheim an der Bergstrasse, Germany) · 2017Article
- Single Molecule Nanospectroscopy Visualizes Proton-Transfer Processes within a Zeolite Crystal.Journal of the American Chemical Society · 2016Article
- X-ray Excited Optical Fluorescence and Diffraction Imaging of Reactivity and Crystallinity in a Zeolite Crystal: Crystallography and Molecular Spectroscopy in One.Angewandte Chemie (Weinheim an der Bergstrasse, Germany) · 2016Article
- X-ray Excited Optical Fluorescence and Diffraction Imaging of Reactivity and Crystallinity in a Zeolite Crystal: Crystallography and Molecular Spectroscopy in One.Angewandte Chemie (International ed. in English) · 2016Article
- Quantitative 3D Fluorescence Imaging of Single Catalytic Turnovers Reveals Spatiotemporal Gradients in Reactivity of Zeolite H-ZSM-5 Crystals upon Steaming.Journal of the American Chemical Society · 2015Article
Corrections and comments
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A detailed and systematic polarized confocal fluorescence microscopy investigation is presented on three batches of large coffin-shaped ZSM-5 crystals (i.e., parent, steamed at 500 °C, and steamed at 700 °C). In total, six laser lines of different wavelength in the visible region are employed on two crystal positions and three orientations with respect to the polarization plane of the excitation laser light. A fluorescent probe molecule is generated inside the zeolite pores, originating from the acid-catalyzed oligomerization of 4-fluorostyrene. A thorough analysis of the polarization plane of emitting fluorescent light reveals insight into the orientation of the fluorescent probe molecule restricted by the highly ordered zeolite channel framework, thereby visualizing pore accessibility and clearly distinguishing the occupation of straight and sinusoidal channels by the probe molecule. Spectral features are, furthermore, observed to tell apart molecules situated in one or the other pore. Special focus was given on the rim and tip regions of the zeolite ZSM-5 crystals. On the basis of the confocal approach of the investigation, the aforementioned features are evaluated in three dimensions, while the degradation of the zeolite framework upon postsynthesis steam treatment could be visualized by occupation of the sinusoidal pores.
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Registered trials
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