Organo-, Silyl-, Germyl-, and Stannylmetal

Structural studies of allylmetal derivatives have also been performed [2]. In allyl compounds in ethereal solvents, the cesium ion is well solvated and an allyl anion is formed. Crystals of cyclopentadienyl rubidium and cesium, which complexed with 18-crown-6, have been isolated and analyzed by X-ray diffraction [3]. 

Main Group Metals in Organic Synthesis. Edited by H. Yamamoto, K. Oshima 

Copyright 2004 WILEY-VCH Verlag GmbH Co. KGaA, Weinheim 

---