Discrete molecular-sized nanocages derived from disintegratable dendrimer templates

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

doi:10.1021/cm702634u

Discrete molecular-sized nanocages derived from disintegratable dendrimer templates

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

^*Corresponding author for this work

Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

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 language	English (US)
Pages (from-to)	373-375
Number of pages	3
Journal	Chemistry of Materials
Volume	20
Issue number	2
DOIs	https://doi.org/10.1021/cm702634u
State	Published - Jan 22 2008

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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title = "Discrete molecular-sized nanocages derived from disintegratable dendrimer templates",

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.",

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T1 - Discrete molecular-sized nanocages derived from disintegratable dendrimer templates

AU - Lee, Jeong Kyu

AU - Kung, Mayfair C.

AU - Suh, Young Woong

AU - Kung, Harold H.

PY - 2008/1/22

Y1 - 2008/1/22

N2 - 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.

AB - 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.

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Discrete molecular-sized nanocages derived from disintegratable dendrimer templates

Abstract

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