Separation of lithium and sodium is a topic of substantial scientific and industrial importance.Regarding Li/Na perchlorates,which are not only environmental hazards but also useful oxidants in chemical synthesis,an e...Separation of lithium and sodium is a topic of substantial scientific and industrial importance.Regarding Li/Na perchlorates,which are not only environmental hazards but also useful oxidants in chemical synthesis,an efficient Li-Na perchlorate separation method has not been reported due to lack of a ligand which can selectively coordinate with one of the two.Herein,we report an efficient Li-Na perchlorate separation by using our hexadentate ligand N,N′,N″-tris-(2-N-diethylaminoethyl)-1,4,7-triaza-cyclononane(DETAN),which can selectively coordinate with LiClO_(4)at room temperature to form a monomer in excellent yield but does not coordinate with NaClO_(4)even at elevated temperature.The structure of the monomeric complex,[LiClO_(4)(DETAN)](1),was characterised by single-crystal X-ray diffraction and NMR spectroscopy.展开更多
基金Leverhulme Trust for their generous financial support via two Research Grant projects RPG-2023-159(R.J.A.,E.L.and M.E.L.)RPG-2022-231(J.M.H.,J.A.D.and E.L.)+1 种基金Newcastle University,University of Birmingham and the EPSRC for a PhD studentship via the Doctoral Training Partnerships(DTP)the Faraday Institution for funding(ReLiB project FIRG085).
文摘Separation of lithium and sodium is a topic of substantial scientific and industrial importance.Regarding Li/Na perchlorates,which are not only environmental hazards but also useful oxidants in chemical synthesis,an efficient Li-Na perchlorate separation method has not been reported due to lack of a ligand which can selectively coordinate with one of the two.Herein,we report an efficient Li-Na perchlorate separation by using our hexadentate ligand N,N′,N″-tris-(2-N-diethylaminoethyl)-1,4,7-triaza-cyclononane(DETAN),which can selectively coordinate with LiClO_(4)at room temperature to form a monomer in excellent yield but does not coordinate with NaClO_(4)even at elevated temperature.The structure of the monomeric complex,[LiClO_(4)(DETAN)](1),was characterised by single-crystal X-ray diffraction and NMR spectroscopy.
