Deprotonation of the aminocobaltocenium ion [Cc-NH₂]⁺ ([H-1]⁺) generates the nucleophilic imine CcNH (1). Reaction of 1 with acid chlorides R–COCl (R = Ph, Fc, and Cc⁺) yields the reference amide [Ph-CO-NH-Cc]⁺ (2⁺) and the amide-linked hetero- and homobimetallocenes [Fc-CO-NH-Cc]⁺ (3⁺) and [Cc-CO-NH-Cc]²⁺ (4²⁺), respectively. Cation–anion interactions of charged amides 2⁺–4²⁺ in the solid state and in solution are probed by single crystal X-ray diffraction and NMR and IR spectroscopy. Intramolecular metal–metal interactions in donor–acceptor heterobimetallocene 3⁺ and in mixed-valent homobimetallocene 4⁺ (prepared electrochemically) are discussed within the Marcus–Hush framework aided by spectroelectrochemical experiments and time-dependent density functional theory calculations.

中文翻译：

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N-钴ce酰胺作为供体-受体双金属茂的反应性亲核试剂

氨基钴铯离子[Cc-NH ₂ ] ⁺（[H-1] ⁺）的去质子化反应生成亲核亚胺CcNH（1）。的反应1与酰氯R-氯化钴（R =苯基，FC和Cc ⁺）得到参考酰胺[PH-CO-NH-CC] ⁺（2 ⁺）和酰胺连接的杂合子和homobimetallocenes [Fc的CO-NH-Cc] ⁺（3 ⁺）和[Cc-CO-NH-Cc] ²⁺（4 ²⁺）。带电酰胺2 ⁺ – 4 ^2+的阳离子-阴离子相互作用通过单晶X射线衍射，NMR和IR光谱探测固态和溶液中的三价铬。在Marcus-Hush框架内，借助光谱电化学实验和随时间变化的密度泛函理论计算，讨论了供体-受体杂双金属茂3 ⁺和混合价均双金属茂4 ⁺（电化学制备）中的分子内金属相互作用。