Abstract

Chiral p-sulfonatocalix[n]arenes (n=4, 6, and 8) bearing (S)-2-methylbutoxy groups (1(n)) have been synthesized. 1(n=4) gave a simple, positive CD band, whereas 1(n=6) and 1(n=8) gave split CD bands characteristic of an exciton coupling at 1 L a region. The present study demonstrates that the CD spectral technique is very useful to obtain insights into calixarene conformations and calixarene complexation properties

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