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

      Ravi Shankar Usharani Sahoo Vandana Shahi Manchal Chaudhary

      Volume 124 Issue 6 November 2012 pp 1239-1244

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/124/06/1239-1244

    • Keywords

       

      Polysilanes; silver nanoparticles/clusters; fluorescent, nanocomposites.

    • Abstract

       

      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.

    • Author Affiliations

       

      Ravi Shankar1 Usharani Sahoo1 Vandana Shahi1 Manchal Chaudhary1

      1. Department of Chemistry, Indian Institute of Technology, New Delhi 110016, India

    • Dates

       
      Published
      November 2012

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