1. Unusual conformational control of mobile mono- and diionizable
calix[4]arene ligands by alkali metal cations
Vladimir S. Talanov,* Hong-Sik Hwang and Richard A. Bartsch
Department of Chemistry and Biochemistry, Texas Tech University,
Lubbock, Texas USA

2. c b a
1NMR spectra (aromatic region) for (a) L1H2, (b) L1Li2, (c) L1Na2 (499.7 MHz, CDCl3, 296K).

3. c b a
1NMR spectra (aromatic region) for (a) L1K2, (b) L1Rb2, (c) L1Cs2 (499.7 MHz, CDCl3, 296K).

4. c b a
Partial 1NMR spectra for (a) L1H2, (b) L1Li2, (c) L1Na2 (499.7 MHz, CDCl3, 296K).

5. c b a
Partial 1NMR spectra for (a) L1K2, (b) L1Rb2, (c) L1Cs2 (499.7 MHz, CDCl3, 296K).

6. *  * * 
NOESY spectrum for L6Cs in CDCl3 (499.7 MHz, 296K). * Identifies signals of ArCH2Ar
protons,  identifies signal of OCH2CO protons; cross-peaks of interest are indicated by
arrows.