A series of neutral 16‐electron square pyramidal ruthenium(II) complexes of the general formula [Ru(POCOP)(X)(CO)] (X = Cl, H) have readily been obtained in good yields from [RuCl₂(COD)]_n and different POCOP pincer ligands based on the naphthoresorcinate backbone. The molecular structure of two of the compounds was unequivocally determined by single‐crystal X‐ray diffraction, showing different stereochemistries upon the coordination of chloride or hydride ligand. The observed discrepancies are explained by DFT calculations. The regiospecific η⁶‐coordination of a second 12‐electron organometallic fragment on the exo aromatic ring of the POCOP pincer ligand was achieved under mild conditions, and the corresponding [(ML_n)Ru(POCOP)(X)(CO)]PF₆ (ML_n = [RuCp]⁺, [RuCp*]⁺ and [FeCp*]⁺) bimetallic sandwich‐like species were obtained as air‐stable solids.

中文翻译：

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非对称钌（II）POCOP钳形配合物及其双金属衍生物的合成通过嗜肾细胞碎片的π配位合成

易于从[RuCl ₂（COD）中以良好的收率获得一系列通式为[Ru（POCOP）（X）（CO）]（X = Cl，H）的中性16-电子方形金字塔型钌（II）配合物。）] _ñ以及基于所述naphthoresorcinate骨干不同POCOP钳配体。通过单晶X射线衍射明确地确定了两种化合物的分子结构，在氯化物或氢化物配体的配位下显示出不同的立体化学。通过DFT计算可以解释观察到的差异。η的区域专一⁶的-coordination第二个12电子有机金属片段的上外的POCOP钳配体的芳族环在温和条件下达到了，并且相应的[（ML _Ñ）Ru（POCOP）（X）（CO）] PF ₆（ML _n = [RuCp] ⁺，[RuCp *] ⁺和[FeCp *] ⁺）双金属三明治状物质，为空气稳定的固体。