First observation of excited triplet dimers with strong intramolecular interactions: planar binuclear phthalocyanines

(Note: The full text of this document is currently only available in the PDF Version )

Kazuyuki Ishii, Nagao Kobayashi, Dominique Lelièvre and Jacques Simon


Abstract

Zero field splitting parameters of planar binuclear phthalocyanines in the lowest excited triplet state have been obtained by using a time-resolved EPR method to show a delocalization of excitation over two phthalocyanine units for a homodimer and a contribution from a charge transfer configuration for a heterodimer.


References

  1. J. Deisenhofer, O. Epp, K. Miki, R. Huber and H. Michel, J. Mol. Biol., 1984, 180, 385 CAS; J. Deisenhofer, O. Epp, K. Miki, R. Huber and H. Michel, Nature, 1985, 318, 618 CrossRef.
  2. M. Gouterman, D. Holten and E. Lieberman, Chem. Phys., 1977, 25, 139 CrossRef CAS; A. Osuka and K. Maruyama, J. Am. Chem. Soc., 1988, 110, 4454 CrossRef CAS; O. Bilsel, J. Rodriguez, D. Holten, G. S. Girolami, S. N. Milam and K. S. Suslick, J. Am. Chem. Soc., 1990, 112, 4075 CrossRef CAS; N. Ishikawa, O. Ohno, Y. Kaizu and H. Kobayashi, J. Phys. Chem., 1992, 96, 8832 CrossRef CAS; A. M. Brun, A. Harriman, V. Heitz and J.-P. Sauvage, J. Am. Chem. Soc., 1991, 113, 8657 CrossRef CAS.
  3. H. Stenlicht and H. M. McConnell, J. Chem. Phys., 1961, 35, 1793 CrossRef CAS; H. Hayashi, S. Iwata and S. Nagakura, J. Chem. Phys., 1969, 50, 993 CrossRef CAS; H. Hayashi and S. Nagakura, Mol. Phys., 1970, 19, 45 CAS.
  4. P. S. Vincett, E. M. Voigt and K. E. Rieckoff, J. Chem. Phys., 1971, 55, 4131 CrossRef CAS.
  5. K. Akiyama, S. Tero-Kubota and Y. Ikegami, Chem. Phys. Lett., 1991, 185, 65 CrossRef CAS.
  6. R. Miyamoto, S. Yamauchi, N. Kobayashi, T. Osa, Y. Ohba and M. Iwaizumi, Coord. Chem. Rev., 1994, 132, 57 CrossRef CAS; S. Yamauchi, H. Konami, K. Akiyama, M. Hatano and M. Iwaizumi, Mol. Phys., 1994, 83, 335 CAS; N. Kobayashi, M. Togashi, T. Osa, K. Ishii, S. Yamauchi and H. Hino, J. Am. Chem. Soc., 1996, 118, 1073 CrossRef CAS.
  7. J. R. Norris, D. E. Budil, P. Gast, C.-H. Chang, O. El-Kabbani and M. Schiffer, Proc. Natl. Acad. Sci. U.S.A., 1989, 86, 4335 CAS; J. R. Norris, T. J. DiMagno, A. Angerhofer, C.-H. Chang, O. El-Kabbani and M. Schiffer, Jerusalem Symp. Quantum Chem. Biochem., 1990, 22, 11 Search PubMed.
  8. D. Lelièvre, L. Bosio, J. Simon, J.-J. André and F. Bensebaa, J. Am. Chem. Soc., 1992, 114, 4475 CrossRef CAS; N. Kobayashi, H. Lam, W. A. Nevin, P. Janda, C. C. Leznoff, T. Koyama, A. Monden and H. Shirai, J. Am. Chem. Soc., 1994, 116, 879 CrossRef CAS; N. Kobayashi, Y. Higashi and T. Osa, J. Chem. Soc., Chem. Commun., 1994, 1785 RSC.
  9. K. Ishii, S. Yamauchi, Y. Ohba, M. Iwaizumi, I. Uchiyama, N. Hirota, K. Maruyama and A. Osuka, J. Phys. Chem., 1994, 98, 9431 CrossRef CAS; K. Ishii, Y. Ohba, M. Iwaizumi and S. Yamauchi, J. Phys. Chem., 1996, 100, 3839 CrossRef CAS.
  10. K. Tominaga, S. Yamauchi and N. Hirota, J. Phys. Chem., 1990, 94, 4425 CrossRef CAS.
  11. N. Kobayashi and H. Konami, in Phthalocyanines: Properties and Applications, ed. C. C. Leznoff and A. B. P. Lever, VCH, New York, 1996, vol. IV, p. 343 Search PubMed.
  12. J. H. van der Waals, W. G. van Dorp and T. J. Schaafsma, in The Porphyrins, ed. D. Dolphin, Academic Press, New York, 1978, vol. IV, p. 257 Search PubMed.
  13. J. Higuchi, J. Chem. Phys., 1963, 38, 1237 CrossRef CAS; S. Yamauchi, N. Hirota and J. Higuchi, J. Phys. Chem., 1988, 92, 2129 CrossRef CAS.
  14. The D values were evaluated using HOMO and LUMO calculated under the PPP approximation (ref. 11).
Click here to see how this site uses Cookies. View our privacy policy here.