Selective metal cation capture by soft anionic metal-organic frameworks via drastic single-crystal-to-single-crystal transformations.
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., Co(2+) and Ni(2+)) over alkali-metal cations (Li(+) and Na(+)).
Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
Jian
J
Tian
Laxmikant V
LV
Saraf
Birgit
B
Schwenzer
Stephanie M
SM
Taylor
Euan K
EK
Brechin
Jun
J
Liu
Scott J
SJ
Dalgarno
Praveen K
PK
Thallapally