The sterically bulky non-symmetrical triazene, DmpN₃(H)Dipp*, was prepared. Amido lead triazenide and dimethyl aluminium triazenide complexes were readily prepared by metalation of the parent triazene. The former is a rare example of a stable heteroleptic lead triazenide complex. Analogous compounds are inaccessible when smaller triazenes are employed, as they readily form homoleptic bis(aryl)triazenide complexes. Quantification of the bulk of this and other bidentate monoanionic N,N′-donor ligands, using solid-state structures of model dimethyl aluminium complexes, help to rationalize the superior stability of the amido lead triazenide complex reported herein with regards subsequent metalation.

制备了体积庞大的不对称三氮烯DmpN ₃（H）Dipp *。酰胺基三叠氮化铅和二叠氮铝叠氮化物配合物可以通过母体三叠氮化物的金属化而容易地制备。前者是稳定的杂三嗪铅复合物的罕见例子。当使用较小的三氮烯时，类似的化合物是不可及的，因为它们容易形成均衡的双（芳基）三叠氮化物络合物。使用模型二甲基铝配合物的固态结构对这种和其他二齿单阴离子N，N'-供体配体的大部分进行定量，有助于合理化本文报道的酰胺基三叠氮化铅配合物在后续金属化方面的优越稳定性。