Skip to main content
Log in

Higher-Order Cyclodextrin Complexes: The Naphthalene System

  • Published:
Journal of inclusion phenomena and macrocyclic chemistry Aims and scope Submit manuscript

Abstract

Naphthalene excited dimer (excimer) fluorescence is observed in the presence of β- and γ-cyclodextrin (CD) at elevated naphthalene (NAP) concentrations (100 μM) but not at low NAP concentrations (5 μM). This is attributed to formation of 2:2 CD:NAP complexes in the former situation. Complexes of NAP with hydroxypropyl β-CD are exclusively 1:1 and no excimer emission is observed. Complexes of NAP with α-CD do not show excimer emission either but the complex stoichiometry is 2:1 CD:NAP in this case. The formation constants for both the 1:1 and 2:2 β-CD:NAP complexes have been determined and they have been found to depend on the ionic strength of the salting out agent NaCl. K1:1 = 377 ± 35 M-1 in the absence of salt and 657 ± 60 M-1 at 1 M NaCl. The corresponding values for K2:2 are (1.0 ± 0.2) × 104 and (4.0 ± 0.5) × 104 M-1, respectively. Stern-Volmer fluorescence quenching studies of the 1:1 and 2:2 species by water-based quenchers (NaI and CsBr) show that both types of complexes protect the fluorophore from the quencher. However, the more completely encapsulated NAP in the 2:2 complex is protected to a greater extent. This is also the case for the 2:2 γ-CD:NAP complex. This protective effect is reflected in the observed rate constants for NAP quenching. For example, kQ = 7.1 × 109 M-1 s-1 for NaI in the absence of CD. This is reduced to 2.1 × 109 M-1 s-1 for the 1:1 complex and 1.2 × 109 M-1 s-1 for the 2:2 complex when 10 mM β-CD is present. A similar pattern is observed for CsBr as quencher. The 2:2 complexes are disrupted in the presence of additives such as linear alcohols and surfactants. The implications of these results for application of CDs for drug stabilization are discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. T. Loftsson and M.E. Brewster: J. Pharm. Sci. 85, 1017 (1996).

    Google Scholar 

  2. G. Thomas: Medicinal Chemistry: an Introduction, J. Wiley & Sons, Toronto (2000).

    Google Scholar 

  3. W. Saenger, J. Jacob, K. Gessler, T. Steiner, D. Hoffmann, H. Sanbe, K. Koizumi, S.M. Smith, and T. Takaha: Chem. Rev. 98, 1787 (1998).

    Google Scholar 

  4. K.A. Connors: Chem. Rev. 97, 1325 (1997).

    Google Scholar 

  5. O.S. Tee: Adv. Phys. Org. Chem. 29, 1 (1994).

    Google Scholar 

  6. T. Nagai: Comprehensive Supramolecular Chemistry, Vol. 3, Pergamon/ Elsevier: Oxford (1996).

    Google Scholar 

  7. C.H. Evans and T. Gunnlaugsson: J. Photochem. Photobiol. A: Chem. 78, 57 (1994).

    Google Scholar 

  8. R. Breslow: Acc. Chem. Res. 28, 146 (1995).

    Google Scholar 

  9. P. Bortolus and S. Monti: In D.C. Neckers, D.H. Volman and G. von Bünau (eds.), Advances in Photochemistry, John Wiley & Sons, New York (1996), Vol. 27, p 1.

    Google Scholar 

  10. M. Partyka, H.A. Bao, and C.H. Evans: J. Photochem. Photobiol. A: Chem. 140, 67 (2001).

    Google Scholar 

  11. N. Funasaki, S. Ishikawa, and S. Neya: J. Pharm. Sci. 90, 740 (2001).

    Google Scholar 

  12. K. Uekama, F. Hirayama, and T. Irie: Chem. Rev. 98, 2045 (1998).

    Google Scholar 

  13. V.J. Stella, V.M. Rao, E.A. Zabbou, and V. Zia: Adv. Drug Delivery Rev. 36, 3 (1999).

    Google Scholar 

  14. T. Irie and K. Uekama: Adv. Drug Deliv. Rev. 36, 101 (1999).

    Google Scholar 

  15. D.C. Bibby, N.M. Davies, and I.G. Tucker: Int. J. Pharmaceutics 197, 1 (2000).

    Google Scholar 

  16. T. Loftsson, A. Magnusdottir, M. Masson, and J.F. Sigurjonsdottir: J. Pharm. Sci. 91, 2307 (2002).

    Google Scholar 

  17. J. Luengo, A. Aránguiz, J. Sepúlveda, L. Hernández, and C. Von Plessing: J. Pharm. Sci. 91, 2593 (2002).

    Google Scholar 

  18. V.M. Rao and V. Stella: J. Pharm. Sci. 92, 927 (2003).

    Google Scholar 

  19. M. Masson, T. Loftsson, S. Jonsdottir, H. Fridriksdottir, and D.S. Petersen: Int. J. Pharmacutics 164, 45 (1998).

    Google Scholar 

  20. T. Loftsson: Drug Stability 1, 22 (1995).

    Google Scholar 

  21. M.V. Encinas, E.A. Lissi, and A.M. Rufs: Photochem. Photobiol. 57, 603 (1993).

    Google Scholar 

  22. C.H. Evans, S. De Feyter, L. Viaene, J. van Stam, and F.C. De Schryver: J. Phys. Chem. 100, 2129 (1996).

    Google Scholar 

  23. J. van Stam, S. De Feyter, F. C. De Schryver, and C.H. Evans: J. Phys. Chem. 100, 19959 (1996).

    Google Scholar 

  24. T.C. Barros, K. Stefaniak, J.F. Holzwarth, and C. Bohne: J. Phys. Chem. A 102, 5639 (1998).

    Google Scholar 

  25. M. Christoff, L.T. Okano, and C. Bohne: J. Photochem. Photobiol. A: Chem. 134, 169 (2000).

    Google Scholar 

  26. C.H. Evans, M. Partyka, and J. van Stam: J. Inclusion Phenom. 38, 381 (2000).

    Google Scholar 

  27. A. Muñoz de la Peña, T.T. Ndou, J.B. Zung, K.L. Greene, D.H. Live, and I.M. Warner: J. Am. Chem. Soc. 113, 1572 (1991).

    Google Scholar 

  28. H.C.B. Yang: J. Phys. Chem. 100, 14533 (1996).

    Google Scholar 

  29. T. Yorozu, M. Hoshino, and M. Imamura: J. Phys. Chem. 86, 4426 (1982).

    Google Scholar 

  30. K. Kano, I. Takenoshita, and T. Ogawa: Chem. Lett. 321 (1982).

  31. W.G. Herkstroeter, P.A. Martic, and S. Farid: J. Chem. Soc., Perkin Trans. II 1453 (1984).

    Google Scholar 

  32. J.B. Zung, A. Muñoz de la Peña, T.T. Ndou, and I.M.Warner: J. Phys. Chem. 95, 6701 (1991).

  33. T. Tamaki, T. Kokubu, and K. Ichimura: Tetrahedron 43, 1485 (1987).

    Google Scholar 

  34. S. De Feyter, J. van Stam, F. Imans, L. Viaene, F.C. De Schryver, and C.H. Evans: Chem. Phys. Lett. 277, 44 (1997).

    Google Scholar 

  35. R.A. Agbaria and D. Gill: J. Phys. Chem. 92, 1052 (1988).

    Google Scholar 

  36. R.A. Agbaria and D. Gill: J. Photochem. Photobiol. A 78, 161 (1994).

    Google Scholar 

  37. K.A. Agnew, T.D. McCarley, R.A. Agbaria, and I.M. Werner: J. Photochem. Photobiol. A 91, 205 (1995).

    Google Scholar 

  38. A. Ueno, K. Takahashi, and T. Osa: J. Chem. Soc., Chem. Commun. 921 (1980).

  39. S. Hamai: Bull. Chem. Soc. Jpn. 55, 2721 (1982).

    Google Scholar 

  40. S. Hamai: J. Phys. Chem. 94, 2595 (1990).

    Google Scholar 

  41. S. Hamai, and N. Mononobe: J. Photochem. Photobiol A: Chem. 91, 217 (1995).

    Google Scholar 

  42. S. Hamai: Bull. Chem. Soc. Jpn. 69, 2469 (1996).

    Google Scholar 

  43. S. Hamai: Bull. Chem. Soc. Jpn. 69, 543 (1996).

    Google Scholar 

  44. R.S. Murphy, T.C. Barros, B. Mayer, G. Marconi, and C. Bohne: Langmuir 16, 8780 (2000).

    Google Scholar 

  45. G. Grabner, K. Rechthaler, B. Mayer, and G. Kohler: J. Phys. Chem. A 104, 1365 (2000).

    Google Scholar 

  46. C. Bob: Handbook of Chemistry and Physics, 63rd edn. ed., CRC Press: Boca Raton (1982).

    Google Scholar 

  47. N.J. Turro, M. Aikawa, and A. Yekta: J. Am. Chem. Soc. 101, 772 (1979).

    Google Scholar 

  48. J. Szejtli: Cyclodextrins and Their Inclusion Complexes, Akademiai Kiado: Budapest (1982).

    Google Scholar 

  49. Y. Liao, and C. Bohne: J. Phys. Chem. 100, 734 (1996).

    Google Scholar 

  50. K.A. Connors: Binding Constants Wiley: New York (1987).

    Google Scholar 

  51. S. Hamai: J. Incl. Phenom. Molec. Recog. 27, 57 (1997).

    Google Scholar 

  52. J. Dey, E.L. Roberts, and I.M. Warner: J. Phys. Chem. A 102, 301 (1998).

    Google Scholar 

  53. Z. Yi, C. Zhao, Z. Huang, H. Chen, and H. Yu: Phys. Chem. Chem. Phys. 1, 441 (1999).

    Google Scholar 

  54. M. Ghosh, R. Zhang, R.G. Lawler, and C.T. Seto: J. Org. Chem. 65, 735 (2000).

    Google Scholar 

  55. R. Breslow: Acc. Chem. Res. 24, 159 (1991).

    Google Scholar 

  56. R.P. Rohrbach, L.J. Rodriguez, E.M. Eryring, and J.F. Wojcik: J. Phys. Chem. 81, 944 (1977).

    Google Scholar 

  57. H. Nakamura, A. Sano, and K. Matsuura: Analytical Sciences 14, 379 (1998).

    Google Scholar 

  58. K. Kalyanasundaram: Photochemistry in Microheterogeneous Systems, Academic Press (1987).

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Christopher H. Evans.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sau, S., Solanki, B., Orprecio, R. et al. Higher-Order Cyclodextrin Complexes: The Naphthalene System. Journal of Inclusion Phenomena 48, 173–180 (2004). https://doi.org/10.1023/B:JIPH.0000022556.47230.c8

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/B:JIPH.0000022556.47230.c8

Navigation