Metal organic frameworks from extended, conjugated pentiptycene-based ligands
作者： Angela K. Crane , Nicholas G. White , Mark J. MacLachlan
DOI: 10.1039/C5CE00886G
关键词: Crystal structure 、 Crystallinity 、 Metal-organic framework 、 Conjugated system 、 Porosity 、 Chemical engineering 、 Void (astronomy) 、 Materials science 、 Organic chemistry 、 Reaction conditions 、 Ligand
摘要: Two new conjugated, iptycene-containing, organic proligands were synthesized for incorporation into zinc-containing metal–organic frameworks (MOFs). A 2D pentiptycene-containing, square-paddlewheel MOF was first and characterized. By varying the reaction conditions slightly, capping ligand could be changed, but long-range order packing of sheets not altered. Addition 4,4′-bipyridine allowed deliberate synthesis a 3D pillared MOF. The crystal structure this material shows very large void spaces, solvent-exchange evacuation led to collapse loss crystallinity. This work demonstrates potential achieve high porosity by preparing MOFs from iptycene-containing ligands.
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