Biopolym. Cell. 1990; 6(3):65-69.
http://dx.doi.org/10.7124/bc.00026E
Structure and Function of Biopolymers
The nature of defective states in crystals of nucleic acid bases
1Ostapenko N. I., 1Skryshevsky Yu. A., 1Kadashchuk A. K., 1Rubin Yu. V.
  1. Institute for Physics, Academy of Sciences of the Ukrainian SSR
    Kiev, USSR

Abstract

The thermostimulated luminescence method was applied to study defective states in crystals of nucleic acid bases of various purity degrees, irradiated with the UV light within a range of 5-300 K or with γ-rays at 77 and 300 K. Carrier traps have been found in pure crystals. Comparing thermoluminescence curves for crystals of cytosine and its methyl derivatives and using results of quantum-mechanical calculations of ionization potentials of tautomeric forms of cytosine molecules, a conclusion has been drawn that some tautomers are present in the crystals studied. Defects resulting from interaction of cytosine molecules with water radiolysis products have been found in cytosine monohydrale crystals irradiated with γ-rays.
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References

[1] Šubertová E, Silinsh E, Prosser V. Some photoelectric properties of the nucleic acid bases in thin layers. Czech J Phys. 1973;23(3):356–67.
[2] Cherkasov YuA, Kiseleva MN, Dodonova NYa. The quantum yield of photogenerated charge carriers in anthracene and nucleic acid bases in the photon energy 3.10 eV. Optika i spektroskopiya. 1978; 45(6):1126-9.
[3] Jelínek O, Tāle IA. Thermoluminescence and long afterglow of adenine in the solid state. J Lumin. 1975;10(6):371–9.
[4] Pyul'man B, Pyul'man A. Quantum Biochemistry. Moscow, Mir, 1965; 654 p.
[5] Radchenko ED, Plokhotnichenko AM, Sheina GG, Blagoĭ IuP. Infrared spectra of uracil and thymine in an argon matrix. Biofizika. 1983;28(6):923-7. Russian.
[6] Moreno-Fuquen R, Rios E, Paredes R, Jaramillo LM, Zukerman-Schpector J. Redetermination of 2,4,6-tricyclo-hexyl-1,3,5-trioxane. Acta Crystallogr Sect E Struct Rep Online. 2008;64(Pt 7):o1301.
[7] Barker DL, Marsh RE. The crystal structure of cytosine. Acta Cryst. 1964;17(12):1581–7.
[8] Halperin A, Braner A, Ben-Zvi A, Kristianpoller N. Thermal Activation Energies in NaCl and KCl Crystals. Phys Rev. 1960;117(2):416–22.
[9] Tatake VG, Desai TS, Sane PV. Isothermal luminescence and thermoluminescence of nucleic acid bases following gamma-irradiation. Photochem Photobiol. 1976;24(5):463-72.
[10] Silin'sh EA. Electronic states of organic molecular crystals. Riga, Zinatne, 1978; 344 p.
[11] Kurik MV, Silin'sh EA. Eksigonnye processes in organic molecular crystals with defects. Bull. Latvian Academy of Sciences. Ser Phys Tehn Sci. 1984; (3) :47-64.
[12] Goddard JD, Mezey PG, Csizmadia IG. A note on a non-empirical molecular orbital study of some cytosine and thymine tautomers. Theoret Chim Acta. 1975;39(1):1–6.
[13] Buda A, Syguła A. MNDO study of the tautomers of nucleic bases. 1 Uracil, thymine and cytosine. J Mol Struct. 1983;92:255–65.
[14] Sandul TV, Kuts VS, Pokhodenko VD. Proton NMR study of the thermodynamics of the association of aromatic amines with basic solvents. Zh obshch khim. 1973; 43(1):180-6.