Discrete molecular-sized nanocages derived from disintegratable dendrimer templates

Jeong Kyu Lee, Mayfair C. Kung, Young Woong Suh, Harold H Kung

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A molecular-sized, internally functionalized, size-selective, and stable nanocage made with a carbosilane shell of a few atom layers thick was synthesized. A tetrahedral G2-core 1 was prepared by condensing an ester, formed from Boc-protected glyceine and pentaerythritol, with 1,3-diamino-2-propanol activated with 4-nitrophenyl (PNP) chloroformate. The chemical structure was confirmed by H NMR spectroscopy and MALDI-TOF MS spectrum. The mass spectra showed a broad distribution due to the statistical nature of the hydrosilation reaction. The FTIR shows intense bands are 1700 cm-1 and 1503 cm -1. This synthesis technique permits variations in the uniform cavity size, and the density and type of internal functional groups, thus offering the possibility to tailor-make nanocages for applications in different environments.

Original languageEnglish
Pages (from-to)373-375
Number of pages3
JournalChemistry of Materials
Volume20
Issue number2
DOIs
Publication statusPublished - Jan 22 2008

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Dendrimers
Propanol
Functional groups
Nuclear magnetic resonance spectroscopy
Esters
Atoms
1,3-diamino-2-propanol
pentaerythritol
carbosilane
4-nitrophenyl

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

Cite this

Discrete molecular-sized nanocages derived from disintegratable dendrimer templates. / Lee, Jeong Kyu; Kung, Mayfair C.; Suh, Young Woong; Kung, Harold H.

In: Chemistry of Materials, Vol. 20, No. 2, 22.01.2008, p. 373-375.

Research output: Contribution to journalArticle

Lee, Jeong Kyu ; Kung, Mayfair C. ; Suh, Young Woong ; Kung, Harold H. / Discrete molecular-sized nanocages derived from disintegratable dendrimer templates. In: Chemistry of Materials. 2008 ; Vol. 20, No. 2. pp. 373-375.
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