Acta Cryst. (2006). E62, m3518-m3520  [ doi:10.1107/S1600536806047593 ]

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

S. Olsson, A. Lennartson and M. Håkansson

Abstract: 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 chelate-ring conformations. In the racemic crystal structure, molecules assemble into bilayers via N-HCl interactions.

Online 30 November 2006

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