Synthesis and photochemical response of Ru(II)-coordinated double-decker silsesquioxane

Kucuk A. C. , Matsui J., Miyashita T.

RSC ADVANCES, vol.8, no.4, pp.2148-2156, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 8 Issue: 4
  • Publication Date: 2018
  • Doi Number: 10.1039/c7ra12290j
  • Title of Journal : RSC ADVANCES
  • Page Numbers: pp.2148-2156


A double-decker silsesquioxane based bis(terpyridine) ruthenium(II) complex (2Tpy/Ru-DDSQ), a member of the polyhedral oligomeric silsesquioxane (POSS) class, has been synthesized. Its structure has been characterized using comprehensive techniques such as nuclear magnetic resonance (H-1 NMR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and UV-visible spectroscopy. This work not only deals with the synthesis of 2Tpy/Ru-DDSQ but also provides the first comprehensive investigation based on the photoluminescence and electrochemical features of a POSS member. With this structure, an efficient anodic photocurrent response has been obtained. This result has been attributed to the perfect arrangement of ruthenium(II)-bis(terpyridine) (tpy) ([Ru(Tpy)(2)](2+)) moieties in the DDSQ nano building blocks. Therefore, 2Tpy/Ru-DDSQ can be considered as a promising candidate for the development of new generation photosensitizers.