Synthesis of Ph<sub>3</sub>PO-stabilized Mo(V) and (VI) imido complexes
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The coordination chemistry of Ph<sub>3</sub>PO with Mo(V) and (VI) complexes is relatively unexplored, especially in terms of the reactivity of the known compounds [Mo<sup>V</sup>OCl<sub>3</sub>(OPPh<sub>3</sub>)<sub>2</sub>] (<b>1</b>) and [Mo<sup>VI</sup>O<sub>2</sub>Cl<sub>2</sub>(OPPh<sub>3</sub>)<sub>2</sub>] (<b>2</b>) for imido complexes. Therefore, in this study, we synthesized and characterized the novel molybdenum imido complexes Mo<sup>V</sup>(NAr)Cl<sub>3</sub>(OPPh<sub>3</sub>)<sub>2</sub> (<b>3</b>), Mo<sup>VI</sup>(NAr)<sub>2</sub>Cl<sub>2</sub>(OPPh<sub>3</sub>)<sub>2</sub> (<b>4</b>), and Mo<sup>VI</sup>(NAr)OCl<sub>2</sub>(OPPh<sub>3</sub>)<sub>2</sub> (<b>5</b>) (where Ar = 2,6-diisopropylaniline). Their x-ray structures and bench-stability are discussed.
三苯基氧膦（Ph₃PO）与钼(V)、钼(VI)配合物的配位化学研究相对匮乏，尤其是针对已知化合物[MoᵛOCl₃(OPPh₃)₂]（化合物1）与[MoᵛᴵO₂Cl₂(OPPh₃)₂]（化合物2）在亚胺基配合物领域的反应活性。为此，本研究合成并表征了三类新型钼亚胺基配合物：Moᵛ(NAr)Cl₃(OPPh₃)₂（化合物3）、Moᵛᴵ(NAr)₂Cl₂(OPPh₃)₂（化合物4）以及Moᵛᴵ(NAr)OCl₂(OPPh₃)₂（化合物5，其中Ar指代2,6-二异丙基苯胺）。本文对上述配合物的X射线晶体结构与台置稳定性展开了讨论。
