Exo‐Functionalized Shape‐Persistent [2+3] Cage Compounds: Influence of Molecular Rigidity on Formation and Permanent Porosity | Zendy

Schneider Markus W. | Zendy; Oppel Iris M. | Zendy; Mastalerz Michael | Zendy

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Exo‐Functionalized Shape‐Persistent [2+3] Cage Compounds: Influence of Molecular Rigidity on Formation and Permanent Porosity

Author(s) -

Schneider Markus W.,

Oppel Iris M.,

Mastalerz Michael

Publication year - 2012

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.201200032

Subject(s) - cage , rigidity (electromagnetism) , porosity , bet theory , materials science , imine , crystallography , porous medium , chemistry , nanotechnology , composite material , organic chemistry , catalysis , structural engineering , engineering

The bigger the better? Rigidity is more important than size for the construction of permanent porous crystals from organic cage compounds. Two [2+3] cage compounds have been synthesized by an imine condensation reaction. The one consisting of rigid subunits (figure left) has an accessible BET surface area of 744 m 2 g −1 , whereas the cage compound with flexible subunits is basically nonporous (BET surface area: 30 m 2 g −1 ) although the shape‐persistent cavity is larger (9.8 vs. 7.8 Å).

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