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We report the synthesis and analysis of metallocenes (ferrocene, chromocene, ruthenocene, vanadocene, tungstenocene-dihydride) encapsulated in single wall carbon nanotubes (SWNTs). In the case of ferrocene, efficient filling of the SWNTs was accomplished from both the liquid and the vapor phase. The other two metallocenes were filled from the vapor phase. High resolution transmission electron microscopy reveals single molecular chains of metallocenes inside SWNTs. Molecules move under the electron beam in the SWNTs indicating the absence of strong chemical bonds between each other and the SWNT wall. Their movement freezes after short illumination as a result of irradiation damage. Energy dispersive X-ray spectrometry confirms the presence of iron, chromium, ruthenium, vanadium and tungsten.
Stercel, F., Nemes, N. M., Fischer, J. E., & Luzzi, D. E. (2001). Single Wall Carbon Nanotubes Filled with Metallocenes: a First Example of Non-Fullerene Peapods. Retrieved from https://repository.upenn.edu/mse_papers/16
Date Posted: 03 November 2004
This document has been peer reviewed.