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Back Cover: Size‐ and Orientation‐Selective Encapsulation of C 70 by Cycloparaphenylenes (Chem. Eur. J. 42/2013)
Author(s) -
Iwamoto Takahiro,
Watanabe Yoshiki,
Takaya Hikaru,
Haino Takeharu,
Yasuda Nobuhiro,
Yamago Shigeru
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201390168
Subject(s) - isotropy , van der waals force , anisotropy , materials science , orientation (vector space) , crystallography , cover (algebra) , chemistry , geometry , physics , optics , mathematics , molecule , organic chemistry , mechanical engineering , engineering
The shortest possible C 70 peapods were formed in a size‐ and orientation‐selective manner from C 70 and either [10]cycloparaphenylene (CPP) or [11]CPP as 1:1 complexes. C 70 exists in two distinct orientations inside the CPP cavity, namely “lying” and “standing”, depending on the size of the CPP. The interaction between [10]CPP and the short axis of C 70 is isotropic, but that between [11]CPP and C 70 is anisotropic, involving the radial deformation of [11]CPP to an ellipsoidal shape. This “induced‐fit” occurred due to the radically elastic character of the CPPs and maximized the van der Waals interactions with the long axis of C 70 . For more details, see the Full Paper by S. Yamago et al. on page 14061 ff.