R. Lyapchev

Most-cited papers

1. Molecular Design of Luminescent Complexes of Eu(III): What Can We Learn from the Ligands

   J. Romanova, R. Lyapchev, Mihail Kolarski, M. Tsvetkov +3 more

   2023Molecules14 citations Open access

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2. Luminescent Complexes of Europium (III) with 2-(Phenylethynyl)-1,10-phenanthroline: The Role of the Counterions

   D. Elenkova, R. Lyapchev, J. Romanova, B. Morgenstern +4 more

   2021Molecules13 citations Open access

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3. Synthesis and structure elucidation of allyl Pd(II) complexes of NHC ligands derived from substituted imidazo[1,5-a]quinolin-1(2H)-ylidene

   R. Lyapchev, P. Petrov, M. Dangalov, N. Vassilev

   20178 citations

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4. Synthesis, crystal structure and luminescence properties of two novel Tb(III) complexes with 1,10-phenanthroline derivatives as ligands

   M. Tsvetkov, D. Elenkova, Mihail Kolarski, R. Lyapchev +4 more

   2024Journal of Molecular Structure5 citations

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5. Efficient Synthesis of Fluorescent Coumarins and Phosphorous-Containing Coumarin-Type Heterocycles via Palladium Catalyzed Cross-Coupling Reactions

   R. Lyapchev, Ana I. Koleva, I. Koleva, Kristian Subev +7 more

   2022Molecules5 citations Open access

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6. A Para-Substituted 2-Phenoxy-1,10-Phenanthroline Ligand for Lanthanide Sensitization: Asymmetric Coordination and Enhanced Emission from Eu3+, Tb3+, Sm3+ and Dy3+ Complexes

   J. Zaharieva, V. Videva, Mihail Kolarski, R. Lyapchev +2 more

   2025Molecules2 citations Open access

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7. Singlet fission tinkertoys based on N-heterocyclic carbenes: the role of stereoisomerism

   J. Stoycheva, R. Lyapchev, A. Tadjer, Marc de Wergifosse +1 more

   2026Journal of Molecular Modeling1 citations Open access

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8. Structural and photophysical insights into lanthanide complexes with a sterically hindered phenanthroline ligand

   J. Zaharieva, D. Gagashev, R. Lyapchev, Nikolay Petkov +4 more

   2026Pure and Applied Chemistry0 citations

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9. Imidazole-2-thiones derived from novel N-heterocyclic carbenes: synthesis and photophysical properties

   Lyuben Borislavov, R. Lyapchev, Julia Romanova, D. Elenkova +1 more

   2026Pure and Applied Chemistry0 citations

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10. Synthesis, Crystal Structure and Optical Properties of Novel 1,10-Phenanthroline Derivatives Containing 2,6-Diisopropylphenoxy Substituents

    M. Tsvetkov, R. Lyapchev, Mihail Kolarski, Bernd Morgenstern +1 more

    2025Crystals0 citations Open access

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11. 2-(2,6-Diisopropylphenyl)-1-methylimidazo[1,5-a]quinolin-2-ium Tetrafluoroborate

    Lyuben Borislavov, I. Koleva, V. Lozanova, Maria Ivanova +1 more

    2024Molbank0 citations Open access

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12. 8-(2-Methoxyphenyl)-6-methyl-2-(1-methyl-1H-benzo[d]imidazol-2-yl)quinoline

    Maria Ivanova, J. Zaharieva, M. Tsvetkov, V. Lozanova +2 more

    2024Molbank0 citations Open access

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13. Singlet fission tinkertoys based on N-heterocyclic carbenes: а study with the spin-flip simplified time-dependent density functional theory method

    G. Kostadinova, R. Lyapchev, J. Stoycheva, Lyuben Borislаvov +3 more

    20220 citations Open access

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14. Atropisomeric phopshorus-decorated 1-phenyl-3 , 4-dihydroquinazolin-1-ium NHC precursors

    R. Lyapchev, M. Dangalov, G. Gencheva, N. Vassilev +1 more

    20170 citations

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15. Synthesis of 2-(2-Methoxyphenyl)-4-methyl-6-nitroquinoline and 2-(2-Methoxyphenyl)-4-methylquinolin-6-amine

    R. Lyapchev, Maria Ivanova, I. Koleva, D. Shandurkov

    0 citations

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