287935-72-2Relevant academic research and scientific papers
Acetylene-linked bis(germaethenes): The first molecules with conjugated germanium-carbon double bonds
Meiners,Saak,Weidenbruch
, p. 2835 - 2836 (2000)
In solution, the digermene Ar2Ge double bond GeAr2 (Ar = 2-tBu-4,5,6-Me3C6H) partly dissociates into two molecules of the germylene Ar2Ge:. The reaction of this digermene with some 1,3-diynes (RC triple bond C-)2 leads to the formation of the acetylene-linked bis(germaethenes) Ar2-Ge double bond C(R)C triple bond C(R)C double bond GeAr2 (R = n-C4H9 (6a), C6H5 (6b)). The conjugation between the two Ge double bond C units is reflected by the positions of the UV/vis absorptions at longest wavelengths of 518 (6a) and 595 (6b) nm. An X-ray structure analysis of 6a reveals a nearly linear C4 skeleton and short Ge double bond C bond lengths of 1.819(2) angstroms.
