The syntheses and characterization of alkali metal complexes of an unsymmetrical monoanionic imidazolin-2-imino–phosphanamidinate ligand, {NHI^DippP(Ph)N(Dipp)}⁻ {L}⁻ [Dipp = 2,6-diisopropylphenyl] is reported. The protio-ligand [NHI^DippP(Ph)NH(Dipp)] (LH) was obtained by the reaction of N-heterocyclic imine (NHI) and [PhP(Cl)NHDipp] in the presence of Et₃N in toluene at room temperature. The lithium complex [{NHI^DippP(Ph)N(Dipp)}Li(OEt₂)] (1) (Et = ethyl) was synthesized by the reaction of the protio ligand LH and one equivalent LiCH₂SiMe₃ in diethyl ether at room temperature. The reaction of sodium or potassium hexamethyldisilazide [MN(SiMe₃)₂] (M = Na or K) with LH in 1:1 molar ratio yielded corresponding alkali metal complexes [{NHI^DippP(Ph)N(Dipp)}Na(THF)] (2) and [{NHI^DippP(Ph)N(Dipp)}K(THF)₂] (3) respectively in good yield. The molecular structures of the protio-ligand LH and alkali metal complexes 1 and 3 were established by single-crystal X-ray diffraction analysis. In the solid-state structures of 1 and 3, the lithium and potassium ions are κ² bonded to the monoanionic ligand moiety through the imine nitrogen and phosphanamidinate nitrogen atoms.

报道了不对称单阴离子咪唑啉-2-亚氨基-磷酰胺配体{NHI ^Dipp P(Ph)N(Dipp)} ^- { L } ^- [Dipp = 2,6-二异丙基苯基]的碱金属配合物的合成和表征。^原配体 [NHI ^Dipp P(Ph)NH(Dipp)] ( LH ) 由N-杂环亚胺 (NHI) 和 [PhP(Cl)NHDipp] 在 Et ₃ N 的甲苯中反应获得室内温度。锂配合物 [{NHI ^Dipp P(Ph)N(Dipp)}Li(OEt ₂ )] ( 1 ) (Et = 乙基) 通过质子配体LH的反应合成和一当量的 LiCH ₂ SiMe ₃在室温下的乙醚溶液。六甲基二硅叠氮钠或钾 [MN(SiMe ₃ ) ₂ ] (M = Na 或 K) 与LH以 1:1 的摩尔比反应生成相应的碱金属配合物 [{NHI ^Dipp P(Ph)N(Dipp)}Na( THF)] ( 2 ) 和 [{NHI ^Dipp P(Ph)N(Dipp)}K(THF) ₂ ] ( 3 ) 分别具有良好的产率。通过单晶 X 射线衍射分析确定了原配体LH和碱金属配合物1和3的分子结构。在固态结构中如图1和3所示，锂离子和钾离子通过亚胺氮和磷酰胺氮原子与单阴离子配体部分κ ²键合。