Formation and Reactivity of a C‐P‐N‐Sc Four‐Membered Ring: H
<sub>2</sub>
, O
<sub>2</sub>
, CO, Phenylsilane, and Pinacolborane Activation
作者:Jiliang Zhou、Li Xiang、Jingjing Guo、Xuebing Leng、Yaofeng Chen
DOI:10.1002/chem.201700564
日期:2017.4.24
786(1) Å), but without a direct Sc−P bonding interaction. The formation of 3 involves a complete cleavage of the imino bond of the tridentate ligand L and C−P and N−P bond coupling. Complex 3 not only activates H2 under mild conditions to give a H−H bond cleavage product, but also reacts with O2, CO, phenylsilane, and pinacolborane to produce novel products through cleavage and formation of various bonds
dimethyl二甲基配合物LScMe 2(L = [2- N(DIPP)C(Ph)N} C 6 H 4 CH = N(DIPP)] --,DIPP = 2.6,(i Pr)2 C 6的反应H 3)(2)与大磷化氢ArPH 2(Ar = 2,6- 3,5-(Me)2 C 6 H 3 } 2 C 6 H 3)产生前所未有的scan 2,3-氮杂磷金属环环丁烷络合物L' Sc(L'= [2- N(DIPP)C(Ph)N} C 6 H 4 C(H)P(2,6-3,5-(CH 3)2 C 6 H3 } 2 C 6 H 3)N(DIPP)] 3-)(3)包含一个C-P-N-Sc四元环。配合物3的特征在于X射线晶体学,揭示了Sc和P原子之间的距离很短(2.786(1)Å),但是没有直接的Sc-P键相互作用。3的形成涉及三齿配体L和C-P和N-P键耦合的亚氨基键的完全断裂。络合物3不仅在温和的条件下活化H