2,5-Digermaselenophenes: Germanium Analogues of Selenophenes

A stable crystalline 2,5-digermaselenophene was synthesized. In contrast to hitherto reported selenophenes, this digermaselenophene exhibits a trans-pyramidalized structure, which is due to its electronic properties. The practical utility of this 2,5-digermaselenophene is reflected in its ability to activate dihydrogen and acetylene at room temperature in the absence of a transition-metal complex, and this behavior can be rationalized on the basis of its physicochemical properties, which are characterized by considerable electron-donating and -accepting abilities.本研究合成了一种稳定结晶态的2,5-二锗硒吩(2,5-digermaselenophene)。与迄今已报道的硒吩类化合物相比，该二锗硒吩呈现反式锥状构型，这一结构特征源于其自身的电子结构性质。该2,5-二锗硒吩的实际应用潜力体现在其无需过渡金属配合物辅助，即可在室温下活化二氢与乙炔的性能；这一行为可通过其兼具优异给电子与受电子能力的理化性质得到合理解释。