Zobrazeno 1 - 10
of 31
pro vyhledávání: '"IRENA P. KOSTOVA"'
Autor:
M. Alcolea Palafox, Nataliya P. Belskaya, Lozan Todorov, Nadya Hristova-Avakumova, Irena P. Kostova
Publikováno v:
Frontiers in Chemistry, Vol 12 (2024)
A novel Ce(III) complex with the triazole ligand 2b, which presents four H-bonded sites with amino acids of the MMP-2 receptor, was synthesized. The experimental IR and Raman spectra of this Ce(III) complex were well-interpreted based on their compar
Externí odkaz:
https://doaj.org/article/5218523dc87b448d9ad90ba190e8a8d7
Autor:
Mauricio Alcolea Palafox, Nataliya P. Belskaya, Lozan T. Todorov, Nadya G. Hristova-Avakoumova, Irena P. Kostova
Publikováno v:
International Journal of Molecular Sciences, Vol 25, Iss 14, p 7964 (2024)
The effect of La, Ce, Pr and Nd ions on four Ln(ligand)3 complexes and at three DFT levels of calculation was analyzed. Four ligands were chosen, three of which were based on the 1,2,3-triazole ring. The DFT methods used were B3LYP, CAM-B3LYP and M06
Externí odkaz:
https://doaj.org/article/817d43db31ee480c8e5143e919844501
Autor:
Irena P. Kostova, Tinko A. Eftimov, Katya Hristova, Stefka Nachkova, Slava Tsoneva, Alexandar Peltekov
Publikováno v:
Crystals, Vol 14, Iss 6, p 575 (2024)
In this paper, we present the characteristics of photoluminescent YBO3 successfully synthesized through a solid-state reaction and a microwave-assisted method. We used yttrium oxide and boric acid in excess as the starting reagents. The synthesis con
Externí odkaz:
https://doaj.org/article/75add5ca231d4f6295eb3d7667db09a8
Autor:
Lozan T. Todorov, Irena P. Kostova
Publikováno v:
Frontiers in Chemistry, Vol 12 (2024)
Coumarin (2H-1-benzopyran-2-one) presents the fundamental structure of an enormous class of biologically active compounds of natural, semi-synthetic, and synthetic origin. Extensive efforts are continually being put into the research and development
Externí odkaz:
https://doaj.org/article/f3fca2ef9ff1433cb596ad2c5d2a0fee
Publikováno v:
Photonics, Vol 11, Iss 5, p 434 (2024)
In this paper, we present the synthesis and luminescent spectra of rare-earth (RE)-doped aluminum and lanthanum borates intended to serve as narrow excitation–emission band fluorescent markers. We perform a detailed 3D excitation–emission matrix
Externí odkaz:
https://doaj.org/article/6b83dbbc36d3423f9b4dde4b0afa80ee
Publikováno v:
Pharmaceutics, Vol 15, Iss 12, p 2686 (2023)
1,2,3-triazole skeleton is a valuable building block for the discovery of new promising anticancer agents. In the present work, the molecular structure of the synthesized anticancer drug 2-(4-chlorophenyl)-5-(pyrrolidin-1-yl)-2H-1,2,3-triazole-4-carb
Externí odkaz:
https://doaj.org/article/448617bc96df42149ba8c5ecd73ec06a
Publikováno v:
Antioxidants, Vol 12, Iss 10, p 1872 (2023)
The 1,2,3-triazole derivative 2-(4-chlorophenyl)-5-(pyrrolidin-1-yl)-2H-1,2,3-triazole-4-carboxylic acid with potential anticancer activity was used as a ligand in complex formation with the lanthanum(III) ion. The molecular structure and vibrational
Externí odkaz:
https://doaj.org/article/a91b555934454cc18a9f7a2d7fab70f8
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 18, p 14001 (2023)
The molecular structure and vibrational spectra of six 1,2,3-triazoles-containing molecules with possible anticancer activity were investigated. For two of them, the optimized geometry was determined in the monomer, cyclic dimer and stacking forms us
Externí odkaz:
https://doaj.org/article/f04a328949cd4e4e8c6064a87fcf0c50
Publikováno v:
International Journal of Molecular Sciences, Vol 24, Iss 10, p 8947 (2023)
The peculiarities of the optical properties of 2-aryl-1,2,3-triazole acids and their sodium salts were investigated in different solvents (1,4-dioxane, dimethyl sulfoxide DMSO, methanol MeOH) and in mixtures with water. The results were discussed in
Externí odkaz:
https://doaj.org/article/07c5af6e4bc2476b90ca16678d8a3b6f
Autor:
Lozan T. Todorov, Irena P. Kostova
Publikováno v:
Exploring Chemistry with Pyridine Derivatives
Exploring Chemistry with Pyridine Derivatives ISBN: 9781803566627
Exploring Chemistry with Pyridine Derivatives ISBN: 9781803566627
Oncological diseases pose a major challenge for modern medicine. Heterocyclic compounds play a vital role in modern medical and pharmaceutical science as most medicinal substances incorporate them. Nitrogen-containing heterocycles serve as the basis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::761f0ec20bc30d628ad8c83ed9f5a453
https://mts.intechopen.com/articles/show/title/pyridine-heterocycles-in-the-therapy-of-oncological-diseases
https://mts.intechopen.com/articles/show/title/pyridine-heterocycles-in-the-therapy-of-oncological-diseases
