A series of bis(vinylthienyl)silane monomers were prepared by reaction of 2 equiv of (vinylthienyl)lithium or (vinylthienyl)magnesium bromide with different dichlorosilicon dialkyls. The monomers react with the Schrock initiator Mo(NAr)(CHCMe 2 Ph)(OCMe(CF 3 ) 2 ) 2 (Ar = 2,6-diisopropylphenyl), via the acyclic diene metathesis polymerization (ADMET) mechanism, to give poly(silanyl−dithienylethene) derivatives in excellent yield. GPC data suggest that the resulting polymers have short repeat sequences. Interchromophore cooperativity is evident, as a low energy emission, for polymer structures that have smaller side groups. This phenomenon is similar to the chromophore cooperativity observed in polymers containing stilbene fragments along the backbone.
No takes yet. Share an insight, caveat, or question.
Miao et al. (1997) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: