References

1. J. Am. Chem. Soc. v.89 C. J. Pederson
2. Science v.183 D. J. Cram
3. Chem. Rev. v.74 J. J. Christensen
4. Advanced in Physical Organic Chemistry v.17 V. Gold
5. Science v.164 R. M. Izatt
6. Chem. Rev. v.89 K. E. Krakowiak
7. Crown Compounds M. Hiraoka
8. Macrocyclic Polyether Syntheses G. W. Gokel
9. Structure and Bonding v.16 J. D. Dunitz
10. 공주대 과학교육연구 v.20 B. B. Park;S. N. Choi
11. Chem. Ber. v.109 E. Weber;F. Vogtle
12. J. Poly. Sci v.25 S. K. Kwon;K. Y. Choi;S. K. Choi
13. Acta Chem. Scand. v.B33 S. Kulstad;L. A. Malmsten
14. J. Amer. Chem. Soc. v.73 D. D. Deford;D. N. Hume
15. J. Electroanal. Chem. v.17 D. S. Jain;A. Kumar;J. N. Gaur
16. Inorg. Chem. v.24 M. Brighli(et al.)
17. Thesis for degree of doctor, chungbuk university J. H. Yang