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Synfacts 2010(9): 1015-1015  
DOI: 10.1055/s-0030-1257918
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Flexible Tetracationic Molecular Box

Contributor(s): Timothy M. Swager, Olesya Haze
H.-Y. Gong, B. M. Rambo, E. Karnas, V. M. Lynch, J. L. Sessler*
The University of Texas at Austin, USA
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Publikationsdatum:
23. August 2010 (online)

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Significance

A conformationally flexible relative (1) of Stoddart’s ‘blue box’ [cyclobis(paraquat-p-phenylene)] is reported. NOESY NMR and X-ray crystal structure analysis show that persistent pseudorotaxanes are formed with mono-tere­phthalate anions.