CuI and Ni0 complexes of a ferrocene-based cyclic (alkyl)(amino)carbene with unexpected structures
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Rajorshi Das
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Clemens Bruhn
Abstract
The dimeric complex [{Cu(μ-I)(A)}2] (12) has been isolated from the reaction of copper(I) iodide with the cyclic (alkyl)(amino)carbene (CAAC) containing a 1,1′-ferrocenylene (fc) backbone fc(CPh2–C–NMes) (A, Mes = mesityl), whereas analogous reactions with conventional CAACs have exclusively afforded monomeric complexes [CuI(CAAC)]. The reaction of tetracarbonylnickel(0) with A furnished the dicarbonyl complex [Ni(CO)2(A)] (2), whereas tricarbonyl complexes [Ni(CO)3(CAAC)] have always been obtained from analogous reactions with conventional CAACs. [{Cu(μ-I)(A)}2] (12) and [Ni(CO)2(A)] (2) have been structurally characterised by single-crystal X-ray diffraction.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: This work was supported by the German Research Foundation (DFG grant number SI 429/23-1).
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Data availability: The raw data can be obtained on request from the corresponding author.
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