The DOI matches its Crossref record; 19 of the 19 references it cites were found in a registry or an index.
Synthesis and Structural Analysis of Two Constitutional Isomeric Libraries of AB2-Based Monodendrons and Supramolecular Dendrimers
Abstract
The synthesis and structural analysis of two constitutional isomeric libraries of self-assembling AB 2 monodendrons based on 3,4- and 3,5-disubstituted benzyl ether internal repeat units containing four different first generation monodendrons, i.e., 3,4,5-tris( n -dodecan-1-yloxy)benzyl ether, 3,4-bis( n -dodecan-1-yloxy)benzyl ether, 3,4,5-tris[ p -( n -dodecan-1-yloxy)benzyloxy]benzyl ether, and 3,4-bis[ p -( n -dodecan-1-yloxy)benzyloxy]benzyl ether, on their periphery are described. Regardless of the repeat unit on their periphery, the first three or four generations of the 3,4-disubstituted series of monodendrons self-assemble into spherical supramolecular dendrimers that self-organize into a Pm 3̄ n 3-D cubic lattice while the same generations of the 3,5-disubstituted series of monodendrons self-assemble into cylindrical supramolecular dendrimers that self-organize into a p 6 mm hexagonal columnar 2-D lattice. The internal repeat unit of the monodendrons determines the shape of the supramolecular dendrimers. However, for a particular internal repeat unit, the architecture from its periphery determines the size of the monodendron, the number of monodendrons that self-assemble into a supramolecular dendrimer, the solid angle of the monodendron, and the dependence of the size of the supramolecular dendrimer on generation number. Since ultimately all monodendrons must reach the shape of a single sphere, the diameter of cylindrical and spherical supramolecular dendrimers constructed from these building blocks is limited to less than 100 Å. The library of 3,5-disubstituted monodendrons also provided the first five examples of supramolecular dendrimers that undergo reversible shape changes induced by temperature and functionality at their focal point. In addition, a spherical supramolecular dendrimer based on a 3,5-disubstituted repeat unit that self-assembles in an Im 3̄ m 3-D cubic lattice was discovered in the same library. The structural information generated by these two AB 2 and the previously reported AB 3 libraries of quasi-equivalent monodendrons provides building blocks that enable the construction of externally regulated functional supramolecular, macromolecular, and single-molecule-based nanosystems self-organizable in predictable lattices.
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Metadata
- Authors
- Percec, V., Cho, W.-D., Ungar, G., & Yeardley, D. J. P.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-01-26
- Volume
- 123
- Issue
- 7
- Pages
- 1302-1315
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2039118776
- Cited by
- 314
- References
- 19
- FWCI
- 25.10
- Type
- journal article
- Language
- en
- Open access
- closed
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