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Maximum spin cyclopentadienyl complexes of 3d transition metals

Identifieur interne : 007D62 ( Main/Merge ); précédent : 007D61; suivant : 007D63

Maximum spin cyclopentadienyl complexes of 3d transition metals

Auteurs : H. Sitzmann [Allemagne]

Source :

RBID : ISTEX:F1D1A8D5253BECD81B79DE0D04D3ADB0E1471573

English descriptors

Abstract

For decades maximum spin behavior of transition metal cyclopentadienyl complexes seemed to be limited to a small set of 3d central atoms in certain oxidation states such as V(II), V(III), Cr(III), Mn(II), and nickelocenes. The observation of four unpaired electrons for the Fe(II) central atoms of the tetraisopropylcyclopentadienyliron bromide dimer in 1996 erased such limitations. High spin behavior has then also been observed for chromocenes and nickel(II) half sandwich complexes. Many of these species are easily accessible, highly reactive and serve as versatile starting compounds for a broad range of follow-up products.

Url:
DOI: 10.1016/S0010-8545(01)00298-3

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ISTEX:F1D1A8D5253BECD81B79DE0D04D3ADB0E1471573

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<term>Me, methyl</term>
<term>Mes, mesityl</term>
<term>VE, valence electrons</term>
<term>acac, acetylacetonate</term>
<term>dme, 1,2-dimethoxyethane</term>
<term>dmpe, 1,2-bis(dimethylphosphino)ethane</term>
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