Alkali Metal Complexes of Silyl??Substituted ansa??(Tris) allyl Ligands: Metal??, Co??Ligand??and Substituent??Dependent Stereochemistry

SA Sulway, R Girshfeld, SA Solomon…

Index: Sulway, Scott A.; Girshfeld, Roman; Solomon, Sophia A.; Muryn, Christopher A.; Poater, Jordi; Sola, Miquel; Bickelhaupt, F. Matthias; Layfield, Richard A. European Journal of Inorganic Chemistry, 2009 , # 27 p. 4157 - 4167

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Citation Number: 8

Abstract

Abstract The structures of alkali metal complexes of silyl-substituted ansa-tris (allyl) ligands [RSi (C 3 H 3 SiMe 3) 3] 3–(R= Me, L 1; or Ph, L 2) are discussed. Triple deprotonation of L 1 H 3 by nBuNa/tmeda affords [L 1 {Na (tmeda)} 3](4) in which the sodium cations are complexed by η n-allyl ligands and the silyl substituents adopt [exo, exo][endo, exo] 2 stereochemistries in one crystallographically disordered form and [endo, exo] 3 in another. ...