Issue 16, 1996
From the journal:

Chemical Communications

The first metal complexes containing the 1,4-cyclohexa-2,5-dienyl ligand (benzene 1,4-dianion); synthesis and structures of [K(18-crown-6)][Ln{η5-C5H3(SiMe3)2-1,3}2(C6H6)](Ln = La, Ce)

M. Cristina Cassani,   Yurii K. Gun'ko,   Peter B. Hitchcock  and  Michael F. Lappert  

Abstract

The reaction of [Ln{η5-C5H3(SiMe3)2-1,3}3] or [(Ln{η5-C5H3(SiMe3)2-1,3}2](Ln = La, Ce) with K or C8K and 18-crown-6 in benzene at ambient temperature yields the crystalline, deep red salts [K(18-crown-6)][Ln{η5-C5H3(SiMe3)2-1,3}2(C6H6)](Ln = La 1, Ce 2), formulated as containing the LnIII(1,4-cyclohexa-2,5=dienyl) moiety, on the basis of their X-ray structures, spectra and hydrolysis to give cyclohexa-1,4-diene.

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Article information

DOI
https://doi.org/10.1039/CC9960001987
Article type
Paper

Chem. Commun., 1996, 1987-1988

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The first metal complexes containing the 1,4-cyclohexa-2,5-dienyl ligand (benzene 1,4-dianion); synthesis and structures of [K(18-crown-6)][Ln{η5-C5H3(SiMe3)2-1,3}2(C6H6)](Ln = La, Ce)

M. C. Cassani, Y. K. Gun'ko, P. B. Hitchcock and M. F. Lappert, Chem. Commun., 1996, 1987 DOI: 10.1039/CC9960001987

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