Abstract
Breaking up: The first triple-decker sandwich anion [(η5-Cp)Li(η5-Cp)Li(η5-Cp)]− of lithocene (Cp=C5H5) (observed in the charge-separated complex [(L)Li(μ-Cp)Li(μ-Cp)Li(L)]+[(η5-Cp)Li(η5-Cp)Li(η5-Cp)]−) is formed in the reaction of [Cp2V] with hppLi (hppH=1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine). The VV-bonded complex [V2(hpp)4] (L) effectively acts as a ligand to intercept the polymeric structure of [CpLi]∞ (see scheme).
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