Hosting Various Guests Including Fullerenes and Free Radicals in Versatile Organic Paramagnetic bTbk Open Frameworks

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• 作者：David Bardelang ; Michel Giorgi ; Virginie Hornebecq ; Anatoli Stepanov ; Mica?l Hardy ; Egon Rizzato ; Valérie Monnier ; Md. Badruz Zaman ; Gordon Chan ; Konstantin Udachin ; Gary Enright ; Paul Tordo ; Olivier Ouari
• 刊名：Crystal Growth & Design
• 出版年：2014
• 出版时间：February 5, 2014
• 年：2014
• 卷：14
• 期：2
• 页码：467-476
• 全文大小：589K
• ISSN：1528-7505

文摘

The dinitroxide bis(TEMPO) bisketal (bTbk) was shown to crystallize into open frameworks whose structures were determined by single-crystal X-ray diffraction. We show that bTbk can be used as a supramolecular building block for the hosting of a plethora of guests inside the 1D channels of its paramagnetic framework, including other radicals such as TEMPO or 2-azaadamantane-N-oxyl. C₆₀ and C₇₀ were also found to be easily included in this open framework during its crystallization. This resulted in well-defined, nanostructured assemblies of composite radical crystals (bTbk/toluene/C₆₀ or C₇₀) or (bTbk/toluene/TEMPO) by a very simple dissolution/crystallization process with tunable guest content. Selective C₆₀ extraction was also demonstrated directly from fullerene soot.