Cyclooctatetraenyl-komplexe der frühen übergangsmetalle und lanthanoide
作者:Ulrike Kilimann、Martina Schäfer、Regine Herbst-Irmer、Frank T. Edelmann
DOI:10.1016/0022-328x(94)80091-x
日期:1994.4
The cerocene(III) derivatives [Li(THF)4][Ce(COT)2] (1) and (THF)3Na(mu-COT)Ce(COT) (2) have been prepared and characterized structurally by an X-ray diffraction study (COT = eta8-cyclooctatetraenyl(2-)). The molecular structures differ significantly, depending on the nature of the alkali metal cation. In the solid state, compound 1 consists of separated ion pairs. In 2 a cyclooctatetraenyl ligand bridges cerium and sodium to give a linear (COT)Ce(mu-COT)Na arrangement.