Linear, branched and network polysilanes with thienyl/furyl substituted sila-alkyl side chains and their applications for the synthesis of fluorescent silver nanoparticles/clusters

Journal of Chemical Sciences

Manchal Chaudhary¹  Vandana Shahi¹  Usharani Sahoo¹  Ravi Shankar1¹ 

[1] Department of Chemistry, Indian Institute of Technology, New Delhi 110016, India$$

关键词: Polysilanes;    silver nanoparticles/clusters;    fluorescent;    nanocomposites.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

The scope of Wurtz coupling and catalytic dehydrocoupling methods for the synthesis of functional polysilanes of compositions, [RR'Si]𝑛 (linear), [(PhMeSi)𝑥-co-(RSi)1−𝑥]𝑛 (branched) and [RSi]𝑛 (network) [R = Et3SiCH2CH2, 2-Fu/2-ThMe2SiCH2CH2 (Fu = Furyl, Th = Thienyl), 𝑛-Hex or Ph; R' = H or Me] is presented. By virtue of 𝜎-delocalized silicon backbone and variable HOMO-LUMO band gap energies, these polymers are found to be promising candidates as reducing agents for Ag(I) ions in toluene/cyclo-hexane and provide a simple approach for ‘size-controlled’ synthesis of silver nanoparticles (AgNPs) as well as fluorescent polymer-silver nanocomposites.

【 授权许可】

Unknown