The facile synthesis of a stable and isolable compound with a fluoroalkynyl group, M−C≡CF, is reported. Reaction of [Ru(C≡CH)(η⁵‐C₅Me₅)(dppe)] with an electrophilic fluorinating agent (NFSI) results in the formation of the fluorovinylidene complex [Ru(=C=CHF)(η⁵‐C₅Me₅)(dppe)][N(SO₂Ph)₂]. Subsequent deprotonation with LiN(SiMe₃)₂ affords the fluoroalkynyl complex [Ru(C≡CF)(η⁵‐C₅Me₅)(dppe)]. In marked contrast to the rare and highly reactive examples of fluoroalkynes that have been reported previously, this compound can be readily isolated and structurally characterized. This has allowed the structure and bonding in the CCF motif to be explored. Further electrophilic fluorination of this species yields the difluorovinylidene complex [Ru(C=CF₂)(η⁵‐C₅Me₅)(dppe)][N(SO₂Ph)₂].

中文翻译：

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结构表征的氟代炔烃

据报道，具有氟炔基MC-CF的稳定且可分离的化合物的简便合成。的的[Ru（C≡CH）（η反应⁵ -C ₅我₅与地层中的fluorovinylidene复杂的[Ru（= C = CHF）（η的亲电氟化剂（NFSI）的结果）（DPPE）] ⁵ - C ₅ Me ₅）（dppe）] [N（SO ₂ Ph）₂ ]。随后去质子化以LIN（森达₃）_2次，得到fluoroalkynyl复杂的[Ru（C≡CF）（η ⁵ -C ₅我₅）（dppe）]。与先前已报道的氟炔烃的稀有和高反应性实例形成鲜明对比的是，该化合物可以轻松分离并进行结构表征。这使得CCF基序的结构和结合得以探索。这一物种的进一步电氟化产生的difluorovinylidene复杂的[Ru（C = CF ₂）（η ⁵ -C ₅我₅）（DPPE）] [N（SO ₂ PH）₂ ]。