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Enzymes and cofactors with iron–sulfur heterocubane core structures, [Fe4S4], are often found in nature as electron transfer reagents in fundamental catalytic transformations. An artificial heterocubane with a [Fe4N4] core is reported that can reversibly store up to four electrons at very negative potentials. The neutral [Fe4N4] and the singly reduced low‐valent [Fe4N4]− heterocubanes were isolated...
Eine neue Wendung: Der Uran(III)‐Komplex [((AdArO)3N)U] reagiert mit CS2 und bildet durch reduktive Kupplung die Tetrathiooxalatverbindung [{((AdArO)3N)U}2(μ‐κ2:κ2‐C2S4)] mit einer neu geknüpften C‐C‐Bindung (siehe Schema). Der UIV/UIV‐Tetrathiooxalatkomplex enthält eine nicht‐planare C2S42−‐Einheit in bislang einzigartiger μ‐κ2:κ2‐Bindungsweise und kann durch weitere Reduktion zum Ethylentetrathiolatkomplex...
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