Details

Autor(en) / Beteiligte

• Morabito, Joseph V
• Chou, Lien-Yang
• Li, Zhehui
• Manna, Cesar M
• Petroff, Christopher A
• Kyada, Rutvin J
• Palomba, Joseph M
• Byers, Jeffery A
• Tsung, Chia-Kuang

Titel

Molecular Encapsulation beyond the Aperture Size Limit through Dissociative Linker Exchange in Metal–Organic Framework Crystals

Ist Teil von

• Journal of the American Chemical Society, 2014-09, Vol.136 (36), p.12540-12543

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Under linker exchange conditions, large guests with molecular diameters 3–4 times the framework aperture size have been encapsulated into preformed nanocrystals of the metal–organic framework ZIF-8. Guest encapsulation is facilitated by the formation of short-lived “open” states of the pores upon linker dissociation. Kinetic studies suggested that linker exchange reactions in ZIF-8 proceed via a competition between dissociative and associative exchange mechanisms, and guest encapsulation was enhanced under conditions where the dissociative pathway predominates.