Abstract

The reaction of (η⁵-C₅H₅)Ni(SIMes)Cl with n-propylmercaptane and NEt₃ in CH₂Cl₂ affords the thiolate carbene nickel complex (η⁵-C₅H₅)Ni(SIMes)SⁿPr (I) (SIMes is 1,3-dimesitylimidazol-2-ylidene), which reacts with W(CO)₅(THF) to form the heterometallic complex (η⁵-C₅H₅)Ni(SIMes)(μ₂-SⁿPr)W(CO)₅ (II). The reaction of complex I with (η⁵-С₅H₅)Mn(CO)₂(THF) affords compound (η⁵-C₅H₅)Ni(SIMes)(μ₂-SⁿPr)(η⁵-С₅H₅)Mn(CO)₂ (III). The structures of compounds I, II, and III are determined by X-ray structure analysis (CIF file CCDC nos. 2024873 (I), 2024874 (II), and 2024875 (III)). According to the data of thermogravimetry and differential scanning calorimetry, the thermal decomposition of complexes II and III occurs stepwise in ranges of 101–500 and 119–550°С, and no ligand elimination is observed.

中文翻译：

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N-杂环卡宾的异金属镍配合物：合成、结构和热分解

摘要

(η ⁵ -C ₅ H ₅ )Ni(SIMes)Cl 与正丙基硫醇和 NEt ₃在 CH ₂ Cl _{2 中反应}得到硫醇卡宾镍配合物 (η ⁵ -C ₅ H ₅ )Ni(SIMes)S ⁿ Pr ( I ) (SIMes 是 1,3-dimesitylimidazol-2-ylidene)，它与 ​​W(CO) ₅ (THF) 反应形成异金属配合物 (η ⁵ -C ₅ H ₅ )Ni(SIMes)(μ ₂ -S ⁿ Pr)W(CO) ₅ ( II )。络合物的反应I与 (η ⁵ -С ₅ H ₅ )Mn(CO) ₂ (THF) 提供化合物 (η ⁵ -C ₅ H ₅ )Ni(SIMes)(μ ₂ -S ⁿ Pr)(η ⁵ -С ₅ H ₅ )Mn(CO) ₂ ( III )。化合物I、II、III的结构由X射线结构分析确定（CIF文件CCDC nos. 2024873 ( I ), 2024874 ( II ), and 2024875 ( III)))。根据热重法和差示扫描量热法的数据，配合物II和III的热分解在101-500和119-550°С的范围内逐步发生，没有观察到配体消除。