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

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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) .
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