Supramolecular Structures of Inclusion Complexes of C70 and Cyclic Porphyrin Dimers

• Hirofumi Nobukuni

  Institute for Materials Chemistry and Engineering, Kyushu University

• Takuya Kamimura

  Institute for Materials Chemistry and Engineering, Kyushu University

• Hidemitsu Uno

  Graduate School of Science and Engineering, Ehime University

• Yuichi Shimazaki

  College of Science, Ibaraki University

• Yoshinori Naruta

  Institute for Materials Chemistry and Engineering, Kyushu University

• Fumito Tani

  Institute for Materials Chemistry and Engineering, Kyushu University

抄録

Cyclic nickel and free-base porphyrin dimers (Ni2-CPDPy and H4-CPDPy) include fullerene C70 both in solution and in the crystals. Based on the 13C NMR spectra in solution, the included C70 molecule inside the cavity of Ni2-CPDPy shows both end-on and side-on orientations, whereas the C70 molecule within H4-CPDPy has only a side-on orientation toward the porphyrin rings. X-ray crystallography revealed both “end-on” and “side-on” orientations of C70 in the crystal structure of the inclusion complex of Ni2-CPDPy and C70. This is the first example of an X-ray crystallographic determination for an end-on orientation of C70 cocrystallized with porphyrins. On the other hand, only a side-on orientation of C70 was observed in the crystal structure of the complex of H4-CPDPy and C70. Further, a zigzag array of C70 molecules through van der Waals contacts with each other is formed along the monoclinic b axis in the latter crystal.

収録刊行物

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 84 (12), 1321-1328, 2011-11-29

  Oxford University Press (OUP)

キーワード

• General Chemistry

詳細情報

• CRID: 1360002219096838528
• NII論文ID: 130004152845
• DOI: 10.1246/bcsj.20110248
• ISSN: 13480634
• ISSN: 00092673
• Web Site: https://academic.oup.com/bcsj/article-pdf/84/12/1321/56273051/bcsj.20110248.pdf
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