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Hindawi, Journal of Nanomaterials, (2014), p. 1-5, 2014

DOI: 10.1155/2014/539295

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Observation and Characterization of Fragile Organometallic Molecules Encapsulated in Single-Wall Carbon Nanotubes

Journal article published in 2014 by Daisuke Ogawa, Ryo Kitaura ORCID, Takeshi Saito, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata, Tetsuya Nakamura ORCID, Hisanori Shinohara ORCID
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Thermally fragile tris(η5-cyclopentadienyl)erbium (ErCp3) molecules are encapsulated in single-wall carbon nanotubes (SWCNTs) with high yield. We realized the encapsulation of ErCp3with high filling ratio by using high quality SWCNTs at an optimized temperature under higher vacuum. Structure determination based on high-resolution transmission electron microscope observations together with the image simulations reveals the presence of almost free rotation of each ErCp3molecule in SWCNTs. The encapsulation is also confirmed by X-ray diffraction. Trivalent character of Er ions (i.e., Er3+) is confirmed by X-ray absorption spectrum.