Abstract
Certain 2-aryl derivatives of [9,10]phenanthroxazole have been synthesized and their spectral and luminescence properties have been investigated. It has been shown that the introduction of acceptor substituents into the para position of the 2 -phenyl radical changes the nature of the fluorescence state, resulting in a nearly two-fold increase of the rate constant of fluorescence emission and a 50% increase of the quantum yield of fluorescence. Special features of the spectral and luminescence properties have been examined for derivatives with an intramolecular hydrogen bond (aryl = o-hydroxyphenyl) and with considerable steric hindrance (aryl = 9-anthryl).
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. B. Birks, The Theory and Practice of Scintillation Counting, Pergamon, New York (1967).
B. M. Krasovitskii and B. M. Volotin, Organic Luminophors [in Russian], Moscow (1984).
O. A. Gunder, “Investigation of radiation resistance of plastic scintillators,” Institute of Single Crystals, Preprint IMK-91-15, Khar'kov (1991).
A. V. Luzanov, Usp. Khim.,69, No. 11, 2086 (1980).
E. Clar, Polycyclic Hydrocarbons, Vol. 1, Academic Press, New York (1964).
A. A. Sukhorukov, O. A. Ponomarev, Yu. N. Brusil'tsev, and V. G. Mitina, Zh. Fiz. Khim.,65, No. 7, 1838 (1991).
R. N. Nunnukhametov and V. G. Tishchenko, Opt. Spektrosk.,23, No. 1, 83 (1967).
Yu. A. Zhdanov and V. I. Minkin, Correlation Analysis in Organic Chemistry [in Russian], Izd. Rostov. Univ., Rostov (1966).
Z. R. Grabovski, Acta Phys. Polon. A,71, No. 5, 743 (1987).
J. T. Sprague, J. C. Tai, J. Juh, and N. L. Allinger, J. Comput. Chem.,8, No. 5, 581 (1987).
W. Klopffer, Adv. Photochem.,10, 311 (1977).
J. R. Lakowicz, Principles of Fluorescence Spectroscopy, Plenum Press, New York (1983).
W. A. Meihuish, J. Phys. Chem.,65, No. 2, 229 (1961).
O. A. Ponomarev, A. O. Doroshenko, and V. G. Mitina, Khim. Fiz.,8, No. 10, 1369 (1989).
A. Grinvald and I. Z. Steinberg, Anal. Biochem.,59, No. 2, 583 (1974).
S. K. Basharin, G. A. Gachko, and L. N. Kivach, Zh. Prikl. Spektrosk.,52, No. 1, 48 (1990).
J. Griffits, Dyes Pigments,3, No. 2-3, 211 (1982).
Additional information
Khar'kov State University, Khar'kov 310077. Institute of Single Crystals, National Academy of Sciences of the Ukraine, Khar'kov 310001. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 558–566, April, 1995. Original article submitted February 23, 1994.
Rights and permissions
About this article
Cite this article
Doroshenko, A.O., Posokhov, E.A., Shershukov, V.M. et al. Spectral and luminescence properties of derivatives of 2-aryl[9,10]phenanthroxazole. Chem Heterocycl Compd 31, 492–499 (1995). https://doi.org/10.1007/BF01177024
Issue Date:
DOI: https://doi.org/10.1007/BF01177024