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Chromophor Inhomogeneity Indication by Diffuse Vibronic Spectra

Received: 23 July 2020     Accepted: 5 August 2020     Published: 3 September 2020
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Abstract

Determination of gap between optically combining states (0-0- transition) from diffuse vibronic absorption or emission spectra is possible now for homogeneous ensembles of chromophores. If the observed spectra present composite polymorphic chromophores or different species they are formed by partial spectra and differing electronic transitions. For these conditions the indicating pure-electronic transition frequency attribute is distorted, smeared or even absent. That behavior is qualitative indication of the chromophore inhomogeneity. The same would be because of impurities. It is shown that the approach of inhomogeneity qualitative indication by spectra is adaptable to different structural forms of chromophor and at polymorphic sites of containing the chromophore media. The experimental data show that the approach is applicable to see the chromophore inhomogeneity by linear and circular vibronic spectra even of molecular dye-labels. The examples of observed distortions for the spectra of different composite species in different media as manifestation of their inhomogeneity are given. As the region of indication 0-0-transition is situated at low intensity antistokes wings of spectra the sensitivity to inhomogeneity is high as to hindrance by impurities and measurement precision.

Published in American Journal of Applied Chemistry (Volume 8, Issue 5)
DOI 10.11648/j.ajac.20200805.11
Page(s) 121-125
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Optical Spectra, 0-0-Electronic Transition, Inhomogeneity of Chromophores, Spectral Inhomogeneity, Impurities Indication, Molecular Labels Homogeneity

References
[1] V. A. Tolkachev (2017). Determination of 0-0-Transition Frequencies from Diffuse Vibronic Spectra. J. Appl. Spectrosc. 84, 668-673.
[2] V. A. Tolkachev (2017). Position of 0-0-Transition Frequency in Diffuse Vibronic Spectrum. Dokl. National. Acad. Sci. Belarus 61, 50-55 (rus.).
[3] V. A. Tolkachev (2018). Average Energies of Combining States and Purely Electronic Transition Frequencies in Vibronic Spectra. J. Appl. Spectrosc. 85, 845-849.
[4] V. A. Tolkachev and A. P. Blokhin (2019). Extraction of Purely Electronic Transition Frequency and Chromophor Polymorphism from Diffuse Vibronic Spectra. Sci. J. Anal. Chem. 7, 76-82.
[5] V. A. Tolkachev (2019). Zero-phonon Transition Frequency in Diffuse Electronic Spectra of Color Centers in Crystals and Glasses. J. Appl. Spectrosc. 86, 504-507, DOI 10.1007/s10812-019-00848-8.
[6] V. A. Tolkachev (2018). Manifestation of Molecular Chromophor Polymorphism in Diffuse Vibronic Spectra. J. Appl. Spectrosc. 85, 220-224.
[7] B. Andrianasolo, B. Champagnon, M. Ferrari, and N. Neuroth (1991). Nonlinear Effects in Microcrystalline Semiconductors. J. Lumin. 48-49, 306-308.
[8] X. Song, G. Wang, X. Liu, F. Feng, J. Wang, L. Lou and W. Zhu (2013). Generation of Nitrogen-Vacancy Color Center in Nanodiamonds by High Temperature Annealing. Appl. Phys. Lett. 102, 133109.
[9] V. A. Tolkachev (2020). Determining the Frequency of a Purely Electronic Transition from Optical Activity Spectra. J. Appl. Spectrosc. 87 (3), 525-530.
[10] X. Yan, X. Cui and L. Li (2010). Synthesis of Large, Stable Colloidal Graphene Quantum Dots with Tunable Size. J. Amer. Chem. Soc. 132, 5944-5945.
[11] H. Riesen, Ch. Wieber and S. Schumacher (2014). Optical Spectroscopy of Graphene Quantum Dots: The Case of C132. J. Phys. Chem. A 118, 5189-5195.
[12] S. Zhu, J. Zhang, S. Tang, C. Qiao, L. Wang, H. Wang, X. Liu, B. Li, N. Yu, X. Wang, H. Sun and B. Yang (2012). Photoluminescence Mechanism in Graphene Quantum Dots: Quantum Confinement Effect and Surface/Edge State. Adv. Funct. Mater. 22, 4732-4740.
[13] P. R. Sainz-Rozas, J. R. Isasi and G. Gonzalez-Gaitano (2005). Spectral and photopysical properties of 2-dibenzofuranol and its inclusion complexes with cyclodextrin. J. Photochem. Photoboil. A: Chemistry 173, 319-327.
[14] E. L. Roberts, J. Dey and I. Warner. (1997). Excited-State Intramolecular Proton Transfer of 2-(2’-Hydroxyphenyl)-benzimidazole in Cyclodextrins and Binary Solvent Mixtures. J. Phys. Chem. A 101, 5296-5301.
[15] D. Voet, W. B. Gratzer, R. A. Cox and P. Doty (1963) Absorption Spectra of Nucleotides, Polynucleotides, and Nucleic Acids in the Far Ultraviolet. Biopolymers 1, 193-208.
[16] V. A. Tolkachev (2020). New Opportunities for Analytical Use of Optical Diffuse Electronic Absorption and Emission Spectra. International Journal of Innovative Studies in Sciences and Engineering Technology 6 (5) 6-9.
[17] C. Zimmer, C. Marck, C. Schneider, D. Thiele, G. Luck, and W. Guschlbauer (1980). Magnetic Circular Dichroism Study of the Binding of Netropsin and Distamycin-A with DNA. Biochimica et Biophysica Acta 607, 232-246.
[18] V. A. Tolkachev (2020). Determination of the Pure-electronic Transition from Diffuse Absorption or Emission Spectra at Low Temperatures. J. Appl. Spectrosc. 87 (6) (Zh. Prikl. Spektrosk. 87 (6) (rus.)). (in print).
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    Vitaly Antonovich Tolkachev. (2020). Chromophor Inhomogeneity Indication by Diffuse Vibronic Spectra. American Journal of Applied Chemistry, 8(5), 121-125. https://doi.org/10.11648/j.ajac.20200805.11

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    Vitaly Antonovich Tolkachev. Chromophor Inhomogeneity Indication by Diffuse Vibronic Spectra. Am. J. Appl. Chem. 2020, 8(5), 121-125. doi: 10.11648/j.ajac.20200805.11

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    AMA Style

    Vitaly Antonovich Tolkachev. Chromophor Inhomogeneity Indication by Diffuse Vibronic Spectra. Am J Appl Chem. 2020;8(5):121-125. doi: 10.11648/j.ajac.20200805.11

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  • @article{10.11648/j.ajac.20200805.11,
      author = {Vitaly Antonovich Tolkachev},
      title = {Chromophor Inhomogeneity Indication by Diffuse Vibronic Spectra},
      journal = {American Journal of Applied Chemistry},
      volume = {8},
      number = {5},
      pages = {121-125},
      doi = {10.11648/j.ajac.20200805.11},
      url = {https://doi.org/10.11648/j.ajac.20200805.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajac.20200805.11},
      abstract = {Determination of gap between optically combining states (0-0- transition) from diffuse vibronic absorption or emission spectra is possible now for homogeneous ensembles of chromophores. If the observed spectra present composite polymorphic chromophores or different species they are formed by partial spectra and differing electronic transitions. For these conditions the indicating pure-electronic transition frequency attribute is distorted, smeared or even absent. That behavior is qualitative indication of the chromophore inhomogeneity. The same would be because of impurities. It is shown that the approach of inhomogeneity qualitative indication by spectra is adaptable to different structural forms of chromophor and at polymorphic sites of containing the chromophore media. The experimental data show that the approach is applicable to see the chromophore inhomogeneity by linear and circular vibronic spectra even of molecular dye-labels. The examples of observed distortions for the spectra of different composite species in different media as manifestation of their inhomogeneity are given. As the region of indication 0-0-transition is situated at low intensity antistokes wings of spectra the sensitivity to inhomogeneity is high as to hindrance by impurities and measurement precision.},
     year = {2020}
    }
    

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  • TY  - JOUR
    T1  - Chromophor Inhomogeneity Indication by Diffuse Vibronic Spectra
    AU  - Vitaly Antonovich Tolkachev
    Y1  - 2020/09/03
    PY  - 2020
    N1  - https://doi.org/10.11648/j.ajac.20200805.11
    DO  - 10.11648/j.ajac.20200805.11
    T2  - American Journal of Applied Chemistry
    JF  - American Journal of Applied Chemistry
    JO  - American Journal of Applied Chemistry
    SP  - 121
    EP  - 125
    PB  - Science Publishing Group
    SN  - 2330-8745
    UR  - https://doi.org/10.11648/j.ajac.20200805.11
    AB  - Determination of gap between optically combining states (0-0- transition) from diffuse vibronic absorption or emission spectra is possible now for homogeneous ensembles of chromophores. If the observed spectra present composite polymorphic chromophores or different species they are formed by partial spectra and differing electronic transitions. For these conditions the indicating pure-electronic transition frequency attribute is distorted, smeared or even absent. That behavior is qualitative indication of the chromophore inhomogeneity. The same would be because of impurities. It is shown that the approach of inhomogeneity qualitative indication by spectra is adaptable to different structural forms of chromophor and at polymorphic sites of containing the chromophore media. The experimental data show that the approach is applicable to see the chromophore inhomogeneity by linear and circular vibronic spectra even of molecular dye-labels. The examples of observed distortions for the spectra of different composite species in different media as manifestation of their inhomogeneity are given. As the region of indication 0-0-transition is situated at low intensity antistokes wings of spectra the sensitivity to inhomogeneity is high as to hindrance by impurities and measurement precision.
    VL  - 8
    IS  - 5
    ER  - 

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Author Information
  • Institute of Physics, National Academy of Sciences of Belarus, Minsk, Belarus

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