Synthesis, X‐ray and Electronic Structure of Trinickel Tetradecker Sandwich Complexes {(η5‐C5H5)Ni[μ,η5‐(CR1)2(BR2)2CR3]}2Ni

Reaction of [(eta(5)-Me4EtC5)Fe(II)Cl(tmeda)] (tmeda = N,N,N'N'-tetramethylethylenediamine) with a polyanion solution of decacyclene (1) results in the formation of the triple-deckers [{(eta(5)-Me4EtC5)Fe}2-mu2-(eta(6):eta(6)-decacyclene)] (3) and [{(eta(5)-Me4EtC5)Fe}4-mu4-(eta(6):eta(6):eta(6):eta(6)-decacyclene)] (4). Metal complexation in 3 and 4 occurs on opposite faces of the pi perimeter in an alternating mode. The decacyclene ring adopts a gently twisted molecular propeller geometry with twofold crystallographic symmetry (C2). Complex 4 crystallizes in the chiral space group C222(1); the investigated crystal only contains decacyclene rings with M chirality. The handedness can be assigned unambiguously to the presence of the iron atoms. Cyclovoltammetric studies revealed quasireversible behavior of the redox events and a strong interaction of the Fe atoms in 3 and 4, exemplified by potential differences deltaE of 660 and 770(780) mV between the first and the second individual oxidation processes. This corresponds to a high degree of metal-metal interaction for 3 and 4. The successful syntheses of 3 and 4 together with earlier results from our laboratory proves that all five- and six-membered pi subunit sets of 1 are prone to metal complexation. A clear site preference in 1 towards the complexation of [Cp(R)]iron, -cobalt, and -nickel fragments exists.

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Synthesis, X‐ray and Electronic Structure of Trinickel Tetradecker Sandwich Complexes {(η⁵‐C₅H₅)Ni[μ,η⁵‐(CR¹)₂(BR²)₂CR³]}₂Ni

Abstract: The reduction of the 18-VE complexes (q5-C5H5)Ni[q5-(CR1),(BRZ),CR3] (2a, b) with potassium in THF leads to the paramagnetic anions 2-, which react with NiBr, . DME to give the triple-decker complexes (q5-C5H5)Ni [p,q5-

Cited by 8 publications

References 28 publications

Electron‐Poor 2,3‐Dihydro‐1,3‐diborolyl Ruthenium Compounds: Synthesis, Complexation, Oxidative Addition, Capping, and Stacking Reactions

Electron‐Poor 2,3‐Dihydro‐1,3‐diborolyl Ruthenium Compounds: Synthesis, Complexation, Oxidative Addition, Capping, and Stacking Reactions

Complexes of ML₃, MCp and Cp₂M

Decacyclene as Complexation Manifold: Synthesis, Structure and Properties of Its Fe₂ and Fe₄ Slipped Triple‐Decker Complexes

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Synthesis, X‐ray and Electronic Structure of Trinickel Tetradecker Sandwich Complexes {(η5‐C5H5)Ni[μ,η5‐(CR1)2(BR2)2CR3]}2Ni

Abstract: The reduction of the 18-VE complexes (q5-C5H5)Ni[q5-(CR1),(BRZ),CR3] (2a, b) with potassium in THF leads to the paramagnetic anions 2-, which react with NiBr, . DME to give the triple-decker complexes (q5-C5H5)Ni [p,q5-

Cited by 8 publications

References 28 publications

Electron‐Poor 2,3‐Dihydro‐1,3‐diborolyl Ruthenium Compounds: Synthesis, Complexation, Oxidative Addition, Capping, and Stacking Reactions

Electron‐Poor 2,3‐Dihydro‐1,3‐diborolyl Ruthenium Compounds: Synthesis, Complexation, Oxidative Addition, Capping, and Stacking Reactions

Complexes of ML3, MCp and Cp2M

Decacyclene as Complexation Manifold: Synthesis, Structure and Properties of Its Fe2 and Fe4 Slipped Triple‐Decker Complexes

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Synthesis, X‐ray and Electronic Structure of Trinickel Tetradecker Sandwich Complexes {(η⁵‐C₅H₅)Ni[μ,η⁵‐(CR¹)₂(BR²)₂CR³]}₂Ni

Complexes of ML₃, MCp and Cp₂M

Decacyclene as Complexation Manifold: Synthesis, Structure and Properties of Its Fe₂ and Fe₄ Slipped Triple‐Decker Complexes