Tubular-Shape Evolution of Microporous Organic Networks

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• 作者：Jiseul Chun ; Ji Hoon Park ; Jieun Kim ; Sang Moon Lee ; Hae Jin Kim ; Seung Uk Son
• 刊名：Chemistry of Materials
• 出版年：2012
• 出版时间：September 11, 2012
• 年：2012
• 卷：24
• 期：17
• 页码：3458-3463
• 全文大小：500K
• 年卷期：v.24,no.17(September 11, 2012)
• ISSN：1520-5002

文摘

This work suggests a synthetic method for tubular-shape evolution of amorphous and microporous organic networks. The gradual addition of a dihalo building block to its mixture with tetrakis(4-ethynylphenyl)methane under conventional Sonogashira coupling conditions resulted in the formation of tubular materials. The resulting tubular materials were characterized by scanning and transmission (TEM) electron microscopies, Brunauer鈥揈mmett鈥揟eller and thermogravimetric analyses, and solid-phase ¹³C NMR spectroscopy. In comparison, when the mixture of a dihalo building block and tetrakis(4-ethynylphenyl)methane was heated under conventional Sonogashira coupling conditions, granular materials were formed. We suggest that the tubular-shape evolution is attributed to the differences of steric situations in networking steps. In TEM, the oriented attachment of the tubular materials was observed.

Keywords:

porous material; microporous organic network; tube; Sonogashira coupling; shape control; oriented attachment