A Coordination Polymer of Bis-[2- (dimethylamino)ethanolato]dimethyl- silane with a Lithium Chloride Dimer
Michael Hagemanna,b, Tania Papeb, and Norbert W. Mitzela,b
aLehrstuhl f¨ur Anorganische Chemie und Strukturchemie, Universit¨at Bielefeld, Universit¨atsstraße 25,
33615 Bielefeld, Germany
bNRW Graduate School of Chemistry, Universit¨at M¨unster, M¨unster, Germany
Reprint requests to Prof. Dr. N. W. Mitzel.
Fax: (+49)521 106 6026. E-mail: mitzel@uni-bielefeld.de Z. Naturforsch.2009,64b,343 – 346;
received January 19, 2009
The reaction of lithium 2-(dimethylamino)ethanolate with Me2SiCl2 yielded a lithium chloride adduct of Me2Si- (OCH2CH2NMe2)2. Despite the application of an excess of Me2SiCl2, the formation of ClMe2SiOCH2CH2NMe2 was not observed. [Me2Si(OCH2CH2NMe2)2·Li2Cl2] was char- acterised by NMR spectroscopy and determination of its crystal structure by X-ray diffraction. In the solid state it forms endless chains consisting of Li2Cl2rhombi, with the lithium atoms chelated by the O and N atom of one OCH2- CH2NMe2substituent of Me2Si(OCH2CH2NMe2)2units.
Key words:Aggregate, Silicon, Lithium, N,O-Ligands, Crystal Structure
