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Shape-Selective Sorption and Fluorescence Sensing of Aromatics in a Flexible Network of Tetrakis[(4-methylthiophenyl)ethynyl]silane and AgBF4

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The large tetrapod tetrakis[(4-methylthiophenyl)ethynyl]silane was crystallized with AgBF4 to form a
diamondoid network based on the Ag(I)-thioether interaction. A 4-fold interpenetration of the individual
nets was observed, with the rest of the unit-cell volume occupied by the benzene guests. The benzene
molecules can be removed without collapsing of the host networks, even though the benzene molecules
appear to be well enclathrated in the cavities formed by the host nets. Interestingly, the apohost displays
a strict size selectivity for small aromatic molecules, which effectively excludes ortho- and meta-substituted benzene derivatives from entering the pores, enabling, for example, the selective sorption of benzene over hexafluorobenzene. The fluorescence arising from the molecular building block also provides for
the sensing of nitrobenzene molecules, which effectively quenches the fluorescence upon entry into the
host net.

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Informasi Detail

Judul Seri

Chemistry of Materials

No. Panggil

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Penerbit

Washington, DC : American Chemical Society., 2009

Deskripsi Fisik

Chem. Mater. 2009, 21, 541–546

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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