Recent developments in solid-state NMR spectroscopy of crystalline microporous materials.

Area of Science:

• Materials Science
• Solid-State Chemistry
• Spectroscopy

Background:

• Microporous materials are vital for catalysis, gas separation, and drug delivery.
• Their function depends on detailed local structure, including active site type and distribution.
• Solid-state NMR spectroscopy offers atomic-level insight into these structures and dynamics.

Purpose of the Study:

• To review basic and advanced experimental approaches in solid-state NMR for microporous materials.
• To highlight recent advances in studying crystalline materials like zeolites and metal-organic frameworks.
• To discuss future directions for the field.

Main Methods:

• Review of experimental solid-state NMR spectroscopy techniques.
• Discussion of advancements in software, NMR-crystallography, isotopic labeling, host-guest interaction characterization, and paramagnetic material analysis.
• Focus on crystalline microporous materials such as zeolites and metal-organic frameworks.

Main Results:

• Solid-state NMR is a powerful tool for characterizing microporous materials at the atomic level.
• Recent advances have improved spectral interpretation, structure determination (NMR-crystallography), and the study of specific interactions and material types.
• New methodologies enable the study of previously challenging systems, including paramagnetic materials.

Conclusions:

• Solid-state NMR spectroscopy is indispensable for understanding microporous materials.
• Ongoing advancements continue to expand the scope and precision of NMR applications in this field.
• Future research will likely focus on further refining techniques and exploring new frontiers in microporous material characterization.