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|Title:||The Crystal-structure of the 8-coordinated Erbium(iii) Complex With the Tetradentate Ligand N,n'-ethylene-bis(salicylaldimine)||Authors:||Mangani, Stefano
|Keywords:||x-ray; crystal structure; erbium; complex||Issue Date:||1989||Project:||None||Journal:||INORGANICA CHIMICA ACTA||Abstract:||
The crystal structure of Er(III)(salen)2(pipH) [salen=N,N′-ethylene-bis(salicylaldimine),pipH= piperidinium] has been determined by X-ray diffraction. The structure of the compound consists of [Er(salen)2]−1 anions and pipH+ cations. In the complex anion the erbium(III) ion is eight-coordinated by the donor atoms of two tetradentate salen ligands, forming a distorted square antiprism with approximate D2 symmetry. The ErO and ErN distances average respectively 2.270 and 2.511 Å. This is the first structural determination of a lanthanide element complex with a tetradentate ligand.
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