Chalcogenide Complexes of Cyclopentadienylnickel with Heterocyclic Carbene
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The monomeric complex (η5-C5H5)Ni(Me2Im)SnPr synthesized by the reaction of the [(η5‑C5H5)Ni(μ-SnPr)]2 dimer with dimethylimidazolium carboxylate is rapidly oxidized in air to form the sulfone complex (η5-C5H5)Ni(Me2Im)S(O)2nPr (I), while its reaction with the adduct W(CO)5(ТHF) affords (η5-C5H5)Ni(Me2Im)(μ-SnPr)W(CO)5 (II). A new heterometallic complex (η5‑C5H5)Ni(Me2Im)TeI2Fc (III) containing the terminal telluroferrocenyl fragment is obtained by the reaction of the known nickel carbene complex (η5-C5H5)Ni(Me2Im)I with FcTeI (Fc = (η5-C5H4)Fe(η5-C5H5)). The complexes synthesized are studied by X-ray structure analysis (CIF files CCDC nos. 1835574, 1835573, and 1835572 for compounds I, II, and III, respectively).
Keywords:nickel carbene chalcogen N-heterocyclic carbenes X-ray structure analysis
This work was carried out on the equipment of the Center for Collective Use of the Kurnakov Institute of General and Inorganic Chemistry (Russian Academy of Sciences).
This work was supported by the Russian Science Foundation, project no. 17-73-10503.