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Luminescent open metal sites within a microporous Eu (BTC) (see figure, BTC = benzene-1, 3, 5-tricarboxylate) metal–organic framework are used for binding and sensing small molecules. The small molecules, such as dimethyl formamide, acetone, and ethanol exhibit different enhancing and quenching effects on the luminescence intensity of Eu (BTC). These specific properties may allow the use of such frameworks as sensors for small molecules. Supporting information for this article is available on the WWW under http: //www. wiley-vch. de/contents/jc₂089/2007/c1838ₛ. pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Chen et al. (Fri,) studied this question.