Diakov, Yury狄亞哥

Postdoctoral Research Fellow

Research Interests

My current research lies in the field of studying the processes occurring in upper atmosphere/low ionosphere and concern with effects of absorption and re-emitting of radio waves by temporary arising Rydberg complexes of main atmosphere molecules. Other fields of my interests are: 1) theoretical study of ionization, excitation and dissociation processes of organic molecules under irradiation; 2) prediction and explanation of mass spectra of various biomolecules; 3) investigation of structure, as far as electronic, physical and chemical properties of metal-organic clusters.

Representative Publications

Golubkov, G.V., Manzhelii, M.I., Berlin, A.A., Eppelbaum, L.V., Lushnikov, A.A., Morozov, I.I., Dmitriev, A.V., Adamson, S.O., Dyakov, Y.A., Morozov, A.N., Golubkov, M.G.* The Problems of Passive Remote Sensing of the Earth’s Surface in the Range of 1.2–1.6 GHz. Atmosphere, V. 11 (2020), No11, 650.   DOI:10.3390/atmos11060650

Kuverova, V.V., Adamson, S.O., Berlin, A.A., Bychkov, V.L., Dmitriev, A.V., Dyakov, Y.A., Eppelbaum, L.V., Golubkov, G.V., Lushnikov, A.A., Manzhelii, M.I., Morozov, A.N., Nabiev, S.S., Shapovalov, V.LSuvorova, A.V., Golubkov, M.G.* Chemical physics of D and E layers of the ionosphere.  Advances in Space Research, V. 64 (2019), P. 1876–1886.  https://pubs.acs.org/doi/10.1021/acs.jpca.8b11908 

Wang, Z., Dyakov, Y.A., Bu Y.* Dynamics Insight into Isomerization and Dissociation of Hot Criegee Intermediate CH3CHOO.  J. Phys. Chem. A, V. 123 (2019), pp.1085−1090. https://doi.org/10.1021/acs.jpca.8b11908 

Dyakov, Y.A.*; Ho, Y.C.; Hsu, W.H.; Ni, C.K.*: Excited States Dissociation Dynamics of Indole-x-Carboxaldehyde (x = 4, 5, 6, 7): Theoretical and Experimental Study. Chemical Physics. V. 515 (2018), P. 543-549.  https://doi.org/10.1016/j.chemphys.2018.09.019    

Dyakov, Y.A., Toliautas, S., Trakhtenberg, L.I., Valkunas L.* Excited state photodissociation dynamics of 2-, 3-, 4-hydroxyacetophenone: Theoretical study. Chemical Physics, V. 515 (2018), p. 672-678.  https://doi.org/10.1016/j.chemphys.2018.07.020 

Dyakov Y.A., Bagchi, A., Lee, Y.T., Ni, C.K.* (2010): Photodissociation dynamics of benzoic acid. J. Chem. Phys. 132, Art. No. 014305.   https://doi.org/10.1063/1.3274624 

Dyakov, Y.A.*; Mebel, A.M.; Lin, S.H.; Lee, Y.T.; Ni, C.K. Photodissociation of 1,3,5-triazine: An ab initio and RRKM study. J. Phys. Chem. A. 111, (2007), P. 9591-9599. https://doi.org/10.1021/jp0740649    

Dyakov, Y.A. *, Ni, C.K., Lin, S.H., Lee, Y.T., Mebel, A.M. (2006): Ab initio and RRKM study of photodissociation of azulene cation.  Phys. Chem. Chem. Phys. 8, 1404-1415. https://doi.org/10.1039/B516437K 

Dyakov, Y.A.*, Ni C.K., Lin S.H., Lee Y.T., Mebel*, A.M. (2005): Photodissociation of azulene at 193 nm: Ab initio and RRKM study. J. Phys. Chem. A. 109, 8774-8784. https://doi.org/10.1021/jp053218m   

Tseng, C.M., Dyakov, Y.A., Huang, C.L., Mebel, A.M., Lin, S.H., Lee, Y.T., Ni, C.K.* Photoisomerization and photodissociation of aniline and 4-methylpyridine. J. Am. Chem. Soc. 126 (2004), p. 8760-8768.  DOI: 10.1021/ja0120678.

Research

Propagation of radio waves through D and F layers of Ionosphere Physical conditions exists in the atmosphere between 60 and 110 kilometers above the Earth surface provide arising of long-life highly excited Rydberg complexes of main atmosphere molecules (N2, O2, NO, etc.), which is responsible for intensive absorption and re-emitting of radio waves in the GPS frequency range. This process directly affect to the efficiency and accuracy of GPS navigation, especially during the magnetic storms. That is why understanding and prediction of processes occurring in the low ionosphere could significantly improve the resolution and stability of GPS devices, as far as techniques based on it: remote sensing, radio occultation methods, climate control, ect. Another possible application of these researches is investigation of composition of exoplanet’s atmosphere by their emission radio spectrum.

Photoionization and photodissociation processes of single molecules under irradiation Theoretical and experimental study of excitation, ionization, and dissociation processes occurring with molecules under the influence of various kinds of radiation are an important task for determination of composition of various gas mixtures, in particular, atmosphere and interstellar medium. Understanding of physical and chemical processes occurring in organic and inorganic molecules under irradiation also can explain the influence of UV and other kind of radiation on biomolecules, as far as formation, changes and destruction of various atmosphere pollutions. One of important application of theoretical investigations mentioned above is explanation and prediction of experimental mass spectra, obtain by various methods: VUV photodissociation, electron impact (IE), collisionaly induced dissociation (CID), MALDI (Matrix-Assisted Laser Desorption/Ionization), and others.

Theoretical and experimental study of structure, as far as biological, physical, and chemical properties of various kinds of nano- and microparticles Investigation of structure and properties of nano- and microparticles of different size and compositions is one of important scientific area, which explain creation and evolution of various particles in low and upper atmosphere, as far as describe their interaction with living organisms.

  • Visiting scholar,
    Genomics Research Center,
    Academia Sinica, Taiwan (2020)
  • Research Associate,
    Karpov Inst. of Phys. Chem., Moscow, Russia
  • Ph.D.
    Karpov Institute of Physical Chemistry, Moscow, Russia(1996)
  • M.S.
    Department of Chemical Physics,
    Kazan State University, Kazan, Russia(1992)
  • (02) 2787-5881

  • yuri

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