one of which has been isolated. From −15 to +10 °C, the σ-BH species undergo a carbon–boron coupling process leading to the platinum hydride derivative [Pt(H)(ItBuiPr–BR2)(ItBuiPr)][BArF], 4. Surprisingly, these compounds are thermally unstable undergoing carbon–boron bond cleavage at room temperature that results in the 14-electron Pt(II) boryl species [Pt(BR2)(ItBuiPr)2][BArF], 2. This unusual reaction
可逆碳-
硼键的形成已在配位不饱和,环
金属,
PT组成的反应(观察到II复合物)[
PT(I吨卜我PR')(I吨卜我PR)] [BAR ˚F ],1,与三配位
硼烷HBR 2。X射线衍射研究提供了该过程涉及的反应序列的结构快照。在低温下,我们观察到了前所未有的σ-BH配合物[
PT(HBR 2)(I t Bu i Pr')(I t Bu i Pr)] [BARhref=https://www.molaid.com/MS_77868 target="_blank">BAr F],其中之一已被隔离。从-15到+10°C,σ-BH物质经历碳-
硼偶联过程,导致氢化
铂衍
生物[
PT(H)(I t Bu i Pr–BR 2)(I t Bu i Pr)]。 [BARhref=https://www.molaid.com/MS_77868 target="_blank">BAr F ],4。出乎意料的是,这些化合物是热不稳定的,在室温下会经历碳-
硼键断裂,从而产生14电子的
PT(II)
硼基物质[
PT(BR 2)(I t Bu i Pr)2 ] [BARhref=https://www.molaid.com/MS_77868 target="_blank">BAr F ],2。这种不寻常的反应过程已通过计算方法得到证实,这表明碳-
硼偶联产物4是在动