Theoretical and Experimental Chemistry

, Volume 25, Issue 5, pp 494–498 | Cite as

Long-wave absorption band and magnetic susceptibility of nickel phthalocyanine in relation to its degree of oxidation

  • A. G. Vinogradskii


A study has been made of the electronic absorption bands in the IR spectral region and the room-temperature magnetic susceptibility of polycrystalline layers and powders of nickel phthalocyanine after oxidation by halogen vapors. The polarization of the long-wave electronic band corresponds to the hypothesis of light absorption by conduction electrons. It has been shown that the magnitude of the magnetic susceptibility of the oxidized samples is independent of their degree of oxidation, and an explanation for this lack of dependence is given within the framework of Hubbard's model.


Oxidation Nickel Absorption Band Magnetic Susceptibility Electronic Absorption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature cited

  1. 1.
    S. J. Schramm, R. P. Scharinge, D. R. Stojakovic, et al., “Chemical, spectral, structural, and charge-transfer properties of the ‘molecular metals’ produced by iodination of nickel phthalocyanine,” J. Am. Chem. Soc., 102, No. 22, 6702–6713 (1980).Google Scholar
  2. 2.
    A. G. Vinogradskii, “Degree of oxidation of nickel and cobalt phthalocyanines in the solid phase by halogens,” Teor. Éksp. Khim., 25, No. 5, 528–534 (1989).Google Scholar
  3. 3.
    G. N. Meshkova, A. T. Vartanyan, and A. N. Sidorov, “Absorption spectra and association of phthalocyanines. Sublimation of layers of phthalocyanine and Cu and Co phthalocyanines,” Opt. Spektrosk., 43, No. 2, 262–266 (1977).Google Scholar
  4. 4.
    A. G. Vinogradskii and A. N. Sidorov, “Electronic structure and spectra of complexes of phthalocyanines with iodine,” Khim. Fiz., 3, No. 3, 378–385 (1984).Google Scholar
  5. 5.
    P. Brant, D. C. Weber, S. J. Haupt, et al., “Partially oxidized group 3B fluorometallophthalocyanines,” J. Chem. Soc., Dalton Trans., No. 2, 269–274 (1985).Google Scholar
  6. 6.
    T. Inabe, Sh. Nakamura, W.-B. Liang, et al., “Highly conductive metallomacrocyclic assemblies. Synthesis via electrocrystallization and single-crystal properties of a phthalocyanine ‘molecular metal’ without halogen counterions,” J. Am. Chem. Soc., 107, No. 24, 7224–7226 (1985).Google Scholar
  7. 7.
    G. B. Torrence, B. A. Scott, and F. B. Kaufman, “Optical properties of charge-transfer salts of tetracyanoquinodimethane (TCNQ),” Solid State Commun., 17, No. 11, 1369–1374 (1975).Google Scholar
  8. 8.
    R. M. Vlasova, L. D. Rozenshtein, L. S. Agroskin, et al., “Anisotropy of optical properties of Cs2(TCNQ)3 single crystals,” Fiz. Tverd. Tela, 13, No. 6, 1223–1226 (1971).Google Scholar
  9. 9.
    T. Kobayashi, Y. Fujiyashi, and N. Uyeda, “The observation of molecular orientations in crystal defects and the growth mechanism of thin phthalocyanine films,” Acta Crystallogr., Sect. A, 38, No. 3, 356–362 (1982).Google Scholar
  10. 10.
    T. Kobayashi, K. Yase, and N. Uyeda, “Direct observation of structure change in Ni phthalocyanine caused by iodine doping,” Acta Crystallogr., Sect. B, 40, No. 3, 263–271 (1984).Google Scholar
  11. 11.
    J. F. Myers, G. W. R. Canham, and A. B. P. Lever, “Higher oxidation level phthalocyanine complexes of chromium, iron, cobalt, and zinc. Phthalocyanine radical species,” Inorg. Chem., 40, No. 3, 461–468 (1975).Google Scholar
  12. 12.
    C. Kittel, Introduction to Solid State Physics, Wiley, New York (1976).Google Scholar
  13. 13.
    J. B. Torrence, Y. Tomkiewicz, and B. D. Silverman, “Enhancement of the magnetic susceptibility of TTF-TCNQ (tetrathiafulvalene-tetracyanoquinodimethane) by Coulomb correlations,” Phys. Rev. B, 15, No. 10, 4738–4749 (1977).Google Scholar
  14. 14.
    T. Inabe, J. W. Lyding, et al., “Cofacial assembly of partially oxidized metallomacrocycles as an approach to controlling lattice architecture in low-dimensional molecular solids. Chemical, structural, oxidation state, transport, magnetic, and optical properties of halogen-doped [M(phthalocyaninato)0]n macromolecules, where M=Si, Ge, and Sn,” J. Am. Chem. Soc., 105, No. 6, 1551–1567 (1983).Google Scholar
  15. 15.
    H. Shiba, “Magnetic susceptibility at zero temperature for the one-dimensional Hubbard model,” Phys. Rev. B, 6, No. 3, 930–938 (1972).Google Scholar

Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • A. G. Vinogradskii
    • 1
  1. 1.Leningrad

Personalised recommendations