To expand the reactivity scope of divalent germanium, an α-iminopyridine supported dicoordinate germanium complex (2) was prepared from deamination of the corresponding pyridine-coordinated diamido germylene (1). The non-innocent ligand supported germanium compound can be viewed as a benzo-fused N-heterocyclic germylene or a neutral α-iminopyridine-coordinated germylone. While the Ge-ligand cooperation observed in the reaction of 2 with HCl and BCl₃ confirms the presence of a vacant p orbital at the Ge(II) atom, the readily transferring of a ligand from 2 to MCl₂ (M = Ge, Sn) with the extrusion of metallic germanium reflects the electron richness of the central Ge(0) atom. The germylone character of 2 was further verified via four-electron oxidation with 2 equiv of tetra-chloro-o-benzoquinone to give the corresponding six-coordinated germanium(IV) adduct.

中文翻译：

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非纯配体负载的亚甲基苯及其多样的反应

要展开的二价锗的反应范围，α-亚氨基吡啶支持dicoordinate锗复合物（2）从相应的吡啶配位二氨基锗烯（脱氨基来制备1）。非纯配体负载的锗化合物可以看作是苯并稠合的N-杂环亚甲基或中性的α-亚氨基吡啶配位的锗烷。尽管在2与HCl和BCl ₃的反应中观察到的Ge-配体合作证实了Ge（II）原子上存在一个空的p轨道，但配体很容易从2转移到MCl ₂（M = Ge，Sn）伴随金属锗的挤出反映了中心Ge（0）原子的电子富集。通过用2当量的四氯-邻-苯醌进行四电子氧化进一步证实了2的胚芽酮特征，得到了相应的六配位锗（IV）加合物。