Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 19, Issue 20, Pages 6313-6320Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201204010
Keywords
anthracene; encapsulation; host-guest systems; molecular recognition; self-assembly
Categories
Funding
- Japan Society for the Promotion of Science (JSPS)
- Japanese Ministry of Education, Culture, Sports, Science and Technology (MEXT) [21108011]
- global COE program (GCOE) Education and Research Center for Emergence of New Molecular Chemistry
- JSPS
- Grants-in-Aid for Scientific Research [12J04743, 21108011] Funding Source: KAKEN
Ask authors/readers for more resources
This article reports that an M2L4 molecular capsule is capable of encapsulating various neutral molecules in quantitative yields. The capsule was obtained as a single product by mixing a small number of components; two PdII ions and four bent bispyridine ligands containing two anthracene panels. Detailed studies of the host capability of the PdII-linked capsule revealed that spherical (e.g., paracyclophane, adamantanes, and fullerene C60), planar (e.g., pyrenes and triphenylene), and bowl-shaped molecules (e.g., corannulene) were encapsulated in the large spherical cavity, giving rise to 1:1 and 1:2 hostguest complexes, respectively. The volume of the encapsulated guest molecules ranged from 190 to 490 angstrom 3. Within the capsule, the planar guests adopt a stacked-dimer structure and the bowl-shaped guests formed an unprecedented concave-to-concave capsular structure, which are fully shielded by the anthracene shell. Competitive binding experiments of the capsule with a set of the planar guests established a preferential binding series for pyrenes approximate to phenanthrene>triphenylene. Furthermore, the capsule showed the selective formation of an unusual ternary complex in the case of triphenylene and corannulene.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available