A series of new d² Re (V) alkylidyne complexes were synthesized, including Re(≡CCH₂Ph)Cl₂(PR₃)₃ (PR₃ = PMe₃, and PMePh₂), Re(≡CCH₂Ph)I₂(PMePh₂)_3, Re(≡CPh)(S₂CNEt₂)₂(PMePh₂), [CpRe(≡CPh)(PMePh₂)₂]Cl, and Re(≡CCH₂Ph)(mnt)(PMePh₂)₂. The complexes Re(≡CCH₂Ar)Cl₂(PR₃)₃ (PR₃ = PMe₃, PMe₂Ph, and PMePh₂) as well as Re(≡CCH₂Ph)I₂(PMePh₂)₃ were found to undergo alkyne metathesis reactions with PhC≡CPh, while the other complexes are inactive. The activity of Re(≡CCH₂Ar)Cl₂(PR₃)₃ toward alkyne metathesis reactions with PhC≡CPh is in the order of PMe₃ < PMe₂Ph < PMePh₂. The complex Re(≡CCH₂Ph)I₂(PMePh₂)₃ is slightly less reactive than its chloride analog. The difference in the reactivity of the alkylidyne complexes has been studied computationally.

中文翻译：

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Re（V）炔烃复合物的合成及配体对Re（V）炔烃复合物对炔烃反应性的影响

一系列新的d ²的Re（V）次烷基配合物的合成，其中包括的Re（≡CCH ₂ PH）氯₂（PR ₃）₃（PR ₃ = PME ₃，和PMePh ₂）中，Re（≡CCH ₂ PH）予₂（PMePh ₂）_3，再（≡CPh）（S ₂ CNET ₂）₂（PMePh ₂），[CPRE（≡CPh）（PMePh ₂）₂ ] Cl和的Re（≡CCH ₂ PH）（MNT）（ PMePh ₂）₂。配合物的Re（≡CCH ₂ AR）氯₂（PR ₃）₃（PR ₃ = PME ₃，PME ₂ Ph和PMePh ₂）以及回复（≡CCH ₂ PH）我₂（PMePh ₂）₃被发现经历与PhC≡CPh炔复分解反应，而其他复合体处于非活动状态。RE的活性（≡CCH ₂ AR）氯₂（PR ₃）₃朝向与PhC≡CPh炔复分解反应是在PME的顺序₃ <PME ₂ PH <PMePh ₂。复杂的Re（≡CCH ₂ PH）我₂（PMePh ₂）_3的反应性略低于其氯化物类似物。已通过计算研究了亚烷基络合物的反应性差异。