204909-89-7Relevant academic research and scientific papers
The formation of heteroleptic carbene homologues by ligand exchange - Synthesis of the first plumbanediyl dimer
Klinkhammer,Fassler,Grutzmacher
, p. 124 - 126 (2008/10/09)
Double bond - yes or no? The centrosymmetic trans-bent dimers 1 and 2 crystallize from a mixture of the corresponding monomeric carbene analogues R2/(f)Sn/Sn(SiR3)2 or R2/(f)Sn/Pb(SiR3)2. The question whether the plumbanediyl dimer 2 contains a double bond and therefore becomes the last member of the series of ethene homologues R4E2 (E = Si, Ge, Pb) remains open. R = SiMe3, R(f) = 2,4,6-(CF3)3C6H2.
