Selective metal cation capture by soft anionic metal-organic frameworks via drastic single-crystal-to-single-crystal transformations

Jian Tian, Laxmikant V. Saraf, Birgit Schwenzer, Stephanie M. Taylor, Euan K. Brechin, Jun Liu, Scott J. Dalgarno, Praveen K. Thallapally

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Flexible anionic metal-organic frameworks (MOFs) are transformed into neutral heterobimetallic systems via single-crystal-to-single-crystal processes invoked by cation insertion. These transformations are directed by cooperative bond breakage and formation, resulting in expansion or contraction of the 3D framework by up to 33% due to the flexible nature of the organic linker. These MOFs displays highly selective uptake of divalent transition-metal cations (e.g., Co2+ and Ni2+) over alkali-metal cations (Li+ and Na+).

Original languageEnglish
Pages (from-to)9581-9584
Number of pages4
JournalJournal of the American Chemical Society
Issue number23
Publication statusPublished - 13 Jun 2012

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