A unique cluster of lithium isopropoxide assisted tantalum isopropoxide derivative incorporating bidentate ketiminate ligand is reported and structurally characterized. Reaction between Li(OCMeCHCMeNAr) and TaCl₅ in toluene at room temperature generates compound 1, (OCMeCHCMeNAr)TaCl₄, in relatively high yield. Further reacting of 1 with excess amount of LiⁱOPr in diethylether affords the tantalum-lithium bimetallic cluster {[Li(OCMeCHCMeNAr)]Ta(OⁱPr)₅(LiOⁱPr)(LiCl)}₂ (2). The molecular geometry of 2 reveals as an edge-sharing bis(open-cube) that it consists two Li-Cl edge-sharing bis(open-cube)TaLi₃O₅Cl units in its core structure.

报道了结合有双齿酮酸化的配体的独特的异丙醇锂辅助的异丙醇钽衍生物簇。室温下，Li（OCMeCHCMeNAr）和TaCl ₅在甲苯中的反应生成化合物1（OCMeCHCMeNAr）TaCl ₄，产率相对较高。1与过量的Li ⁱ OPr在乙醚中进一步反应，得到钽-锂双金属簇{[Li（OCMeCHCMeNAr）] Ta（O ⁱ Pr）₅（LiO ⁱ Pr）（LiCl）} ₂（2）。2的分子几何作为边缘共享的bis（open-cube），它在其核心结构中包含两个Li-Cl边缘共享的bis（open-cube）TaLi ₃ O ₅ Cl单元。