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Mo(V)及Mo(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[Mo(V)OCl₃(OPPh₃)₂]（化合物<b>1</b>）与[Mo(VI)O₂Cl₂(OPPh₃)₂]（化合物<b>2</b>）在亚胺基配合物方面的反应活性而言。有鉴于此，本研究合成并表征了三种新型钼亚胺基配合物：Mo(V)(NAr)Cl₃(OPPh₃)₂（化合物<b>3</b>）、Mo(VI)(NAr)₂Cl₂(OPPh₃)₂（化合物<b>4</b>）以及Mo(VI)(NAr)OCl₂(OPPh₃)₂（化合物<b>5</b>）（其中Ar代表2,6-二异丙基苯胺基团）。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。
