000076709 001__ 76709
000076709 005__ 20181203020109.0
000076709 0247_ $$2doi$$a10.1073/pnas.062663899
000076709 022__ $$a0027-8424
000076709 02470 $$2DAR$$a91
000076709 02470 $$2ISI$$a000175087000051
000076709 037__ $$aARTICLE
000076709 245__ $$aA self-assembled, redox-responsive receptor for the selective extraction of LiCl from water
000076709 260__ $$c2002
000076709 269__ $$a2002
000076709 336__ $$aJournal Articles
000076709 520__ $$aThere is considerable interest in synthetic ionophores with high affinity and selectivity for Li+. But so far, compounds that selectively bind Li+ in the presence of other alkali and alkaline earth metal ions are rare and current approaches toward this goal are often accompanied with substantial synthetic efforts. Here we describe a trinuclear ruthenium metallamacrocyclic complex (1) that was obtained by self-assembly of ruthenium halfsandwich complexes and 3-hydroxy-2-pyridone ligands. This complex was shown to be an extremely potent receptor for LiCl with an affinity high enough to extract LiCl from water. The selectivity of this receptor is exceptional: even in the presence of a large excess of Na+, K+, Cs+, Ca2+, and Mg2+, Li+ was extracted exclusively. The Li+/Na+ selectivity ratio was determined to be higher than 1,000:1. Compared with other synthetic ionophores, the receptor 1 offers two additional advantages: (t) the synthesis can be accomplished in one step by using simple starting materials; and (h) the presence of lithium ions can be detected electrochemically. Complex 1 is therefore a very attractive candidate for the construction of a Li+-specific chemosensor.
000076709 700__ $$aPiotrowski, H
000076709 700__ $$0240333$$aSeverin, K$$g145138
000076709 773__ $$j99$$k8$$q4997-5000$$tPROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
000076709 909C0 $$0252071$$pLCS$$xU10109
000076709 909CO $$ooai:infoscience.tind.io:76709$$pSB$$particle
000076709 937__ $$aLCS-ARTICLE-2002-002
000076709 970__ $$aISI:000175087000051/LCS
000076709 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000076709 980__ $$aARTICLE