Specific and Oriented Encapsulation of Fullerene C 70 into a Supramolecular Double‐Decker Cage Composed of Shape‐Persistent Macrocycles
Abstract An efficient strategy for the specific recognition of ellipsoidal fullerenes uses molecular containers with well‐designed three‐dimensional (3D) nanospaces. We describe the synthesis of a supramolecular double‐decker cage composed of shape‐persistent metallomacrocycles and pillar ligands. A...
Saved in:
| Published in | Angewandte Chemie Vol. 130; no. 45; pp. 15043 - 15047 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | English |
| Published |
05.11.2018
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | Abstract
An efficient strategy for the specific recognition of ellipsoidal fullerenes uses molecular containers with well‐designed three‐dimensional (3D) nanospaces. We describe the synthesis of a supramolecular double‐decker cage composed of shape‐persistent metallomacrocycles and pillar ligands. A discrete 3D nanospace was built within the molecular framework of the shape‐persistent‐macrocycle/bidentate‐pillar molecule. The single‐crystal structure of the supramolecular cage reveals a uniquely shaped inner cavity with a size and net volume (>670 Å
3
) that are well matched to the shape and size of C
70
. The cage exhibited higher selectivity for C
70
over C
60
, the smaller carbon allotrope. We suggest that such C
70
‐selective recognition is derived from multiple CH–π interactions between hydrogen atoms inside the cage and C
70
. |
|---|---|
| ISSN: | 0044-8249 1521-3757 |
| DOI: | 10.1002/ange.201809167 |