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[4-(2-Aminoethyl)-1,4,7,10-tetraazadecane]lithium chloride: a bilayered structure displaying the rare TRENEN ligand

Journal article
Authors S Olsson
Anders Lennartson
Mikael Håkansson
Published in Acta Crystallographica Section E-Structure Reports Online
Volume 62
Pages M3518-M3520
Publication year 2006
Published at Department of Chemistry
Pages M3518-M3520
Language en
Links <Go to ISI>://000242434600159
Subject categories Chemical Sciences


The pentadentate ligand TRENEN [4-(2-aminoetyl)-1,4,7,10-tetraazadecane] is not readily available in the pure state, but is present as a major impurity in commercial tetraethylene pentamine. Therefore, only four structures containing TRENEN have been reported previously. We report here the crystal structure of the title compound, [Li(trenen)]Cl or [Li(C8H23N5)]Cl. The Li atom has a distorted trigonal bipyramidal coordination geometry. The [Li(trenen)](+) cation is chiral since one of the N atoms is a chirogenic centre. A second type of chirality arises as a consequence of the chelatering conformations. In the racemic crystal structure, molecules assemble into bilayers via N - H center dot center dot center dot Cl interactions.

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