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

• Published in: RSC advances Vol. 8; no. 4; pp. 2148 - 2156
• Main Authors: Kucuk, Asuman Celik, Matsui, Jun, Miyashita, Tokuji
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 01.01.2018; The Royal Society of Chemistry
• Subjects: Chemistry; Electrons; NMR; Nuclear magnetic resonance; Photoelectric effect; Photoelectric emission; Photoluminescence; Polyhedral oligomeric silsesquioxane; Ruthenium; Ruthenium compounds; Spectrum analysis; Synthesis; X ray photoelectron spectroscopy
• ISSN: 2046-2069; 2046-2069
• DOI: 10.1039/c7ra12290j

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 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) ] ) 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.