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Research areas

• Quantum chemical studies of
  luminescent lanthanide complexes: molecular
  characteristics and photophysical properties;
• energy-transfer and charge-transfer
  mechanisms in lanthanide complexes with organic chromophores: theoretical
  description and modeling;
• design of novel functional
  materials, by molecular modeling of p-, d- and
  f-metal compounds in solid phase and composite structures.

Selected papers

1. Muhammad Akhtar, Ivelina Georgieva, Tsvetan Zahariev, Natasha Trendafilova, Tayyaba Ahmad, Aqeela Noor, Muhammad Nawaz Tahir, Muhammad Mazhar, Anvarhusein A Isab and Saeed Ahmad,
   “Synthesis, X-ray structure, and DFT modeling of a new polymeric zinc(II) complex of 2-mercaptonicotinic acid (MntH), {[Zn(Mnt–Mnt)(en)]•H2O}n”,
   Monatshefte für Chemie-Chemical Monthly, 150 (2019): 219-231.
2. A. Ouasri, M. S. D. Elyoubi, A. Rhandour, Ivelina Georgieva, Tsvetan K. Zahariev, Natasha Trendafilova and Pascal Roussel,
   “X-ray structures, solid state periodic DFT modeling and vibrational study of alkylenediammonium hexachlorostannates compounds NH3(CH2)nNH3SnCl6 (n = 3, 4, 5)”,
   Journal of Molecular Structure, 1177 (2019): 55-67.
3. Ivelina Georgieva, Natasha Trendafilova, Tsvetan Zahariev, Nina Danchova and Stoyan Gutzov,
   „Theoretical insight in highly luminescent properties of Eu(III) complex with phenanthroline ”,
   Journal of Luminescence, 202 (2018): 192-205.
4. Tsvetan Zahariev, Alia Tadjer and Anela Ivanova,
   “Transfer of Non-Ionic Surfactants across the Water-Oil Interface: A Molecular Dynamics Study”,
   Colloids and Surfaces A: Physicochem. Eng. Aspects (IF: 2.714, Q2) 506 (2016): 20-31.