Issue 22, 2012
From the journal:

CrystEngComm

Cyclic transformation in shape and crystal structure of C60 microcrystals

Akito Masuhara,*abc   Zhenquan Tan,d   Masataka Ikeshima,a   Toshimitsu Sato,a   Hitoshi Kasai,e   Hidetoshi Oikawae  and  Hachiro Nakanishie  

* Corresponding authors

a Graduate School of Science and Engineering, Yamagata University, Jonan 4-3-16, Yonezawa, Yamagata, Japan
E-mail: masuhara@yz.yamagata-u.ac.jp
Fax: +81 238 26 3891
Tel: +81 238 26 3891

b Research Center for Organic Electronics, Yamagata University, Jonan 4-3-16, Yonezawa, Yamagata, Japan

c Institute for Regional Innovation, Yamagata University, Jonan 4-3-16, Yonezawa, Yamagata, Japan

d Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan

e Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai, Japan

Abstract

The cyclic transformations in shape and crystal structure of C60 microcrystals in dispersion are experimentally demonstrated by changing the dispersion solvent medium, and keeping the dispersion under ultrasonication. The shape of C60 microcrystals was changed from as-grown rod-shape to hexagonal disc-shape, then to belt-shape, and again back to rod-shape. The transformation processes were investigated by means of TEM, XRD and FT-IR measurements. As a results, the present transformation is regarded to be a crystal-to-crystal phase transition induced by the exchange of the dispersion medium, which is finally ascribed to weak intermolecular interactions between C60s inside the crystal.

Graphical abstract: Cyclic transformation in shape and crystal structure of C60 microcrystals

  • This article is part of the themed collection: Nanocrystals
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Article information

DOI
https://doi.org/10.1039/C2CE25798J
Article type
Paper
Submitted
22 May 2012
Accepted
26 Jun 2012
First published
26 Jun 2012

CrystEngComm, 2012,14, 7787-7791

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Cyclic transformation in shape and crystal structure of C60 microcrystals

A. Masuhara, Z. Tan, M. Ikeshima, T. Sato, H. Kasai, H. Oikawa and H. Nakanishi, CrystEngComm, 2012, 14, 7787 DOI: 10.1039/C2CE25798J

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