A5083708828- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Lanthanide and Transition Metal Complexes
- Magnetism in coordination complexes
- Organic Light-Emitting Diodes Research
- Luminescence Properties of Advanced Materials
- Luminescence and Fluorescent Materials
- Crystallography and molecular interactions
- Radioactive element chemistry and processing
- Probiotics and Fermented Foods
- Digestive system and related health
- Gut microbiota and health
- Nonlinear Optical Materials Studies
- Organic Electronics and Photovoltaics
- Organometallic Complex Synthesis and Catalysis
- Quantum Dots Synthesis And Properties
- Biochemical effects in animals
- Inorganic Chemistry and Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Atomic and Subatomic Physics Research
- Photochemistry and Electron Transfer Studies
- Metal complexes synthesis and properties
- Effects of Radiation Exposure
- Radioactive contamination and transfer
- Radiation Effects and Dosimetry
P.N. Lebedev Physical Institute of the Russian Academy of Sciences
2017-2025
Bauman Moscow State Technical University
2016-2024
Russian Academy of Sciences
2021
Pirogov Russian National Research Medical University
2000
The synthesis, structures, magnetic and luminescence (including thermometry) properties of a series three-blade propeller homoleptic lanthanide complexes are reported.
Three novel lanthanide complexes with the ligand 4,4-difluoro-1-(1,5-dimethyl-1H-pyrazol-4-yl)butane-1,3-dione (HL), namely [LnL3(H2O)2], Ln = Eu, Gd and Tb, were synthesized, and, according to single-crystal X-ray diffraction, are isostructural. The photoluminescent properties of these compounds, as well three series mixed metal [EuxTb1-xL3(H2O)2] (EuxTb1-xL3), [EuxGd1-xL3(H2O)2] (EuxGd1-xL3), [GdxTb1-xL3(H2O)2] (GdxTb1-xL3), studied. EuxTb1-xL3 exhibit simultaneous emission both Eu3+ Tb3+...
A series of europium and gadolinium complexes comprising a β-diketone moiety modified with fluorinated side-group thiophene ring have been designed synthesized comparative study their luminescence properties has carried out. In this study, when the methyl side group was by sequential addition fluorine substituents then perfluorinated carbon chain extended up to n-C8F17 adding CF2 fragments, it transpired that non-radiative energy processes are significantly suppressed in structurally more...
A novel method for identifying counterfeit goods based on the difference between photobleaching rates of spectroscopic marker components is proposed. Controlled dye achieved via introduction of...
Varying the temperature of reaction [{Cd(pfb)(H2O)4}+n·n(pfb)−], [Ln2(pfb)6(H2O)8]·H2O (Hpfb = pentafluorobenzoic acid), and 1,10-phenanthroline (phen) in MeCN followed by crystallization resulted isolation two type products: 1D-polymers [LnCd(pfb)5(phen)]n·1.5nMeCN (Ln Eu (I), Gd (II), Tb (III), Dy (IV)) which were isolated at 25 °C, molecular compounds [Tb2Cd2(pfb)10(phen)2] (V) formed 75 °C. The transition from a to polymer structure becomes possible because intra- intermolecular...
We synthesized and investigated a new series of Sm3+ 1,3-diketonate complexes with CnF2n+1-homologous thiophene-containing ligands. A clear correlation was found between the number fluorine atoms in 1,3-diketone's carbon...
Applied methods for detecting water impurities in organic solvents, such as Fischer titration, include wayward equipment and toxic reagents. This method is inapplicable H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O D O, but suitable techniques like NMR-, IR-, mass-spectrometry are costly. We report a low-cost, novel luminescent sensor material based on terbium-europium 3D MOF compound developed facile, portable, disposable...
The possibility of using a single light-emitting layer consisting newly synthesized fluorescent small organic molecules D-A-π-A type incorporated into conductive matrix together with an electron Alq3 in order to form radiation candle light-style OLEDs was shown for the first time. A record low color temperature 1722 K OLED achieved, which is by 80 lower than that best devices reported previously.
Cyclometalated Ir(<sc>iii</sc>) complexes with bulky 2-arylphenanthroimidazole ligands possess tunable optical properties and demonstrate unusually high reactivity.
A novel β‐diketone ligand bearing a thiophene moiety and an anchoring Ph‐COOCH 3 unit has been designed, prepared used in synthesis of cyclometalated benzimidazole‐based iridium(III) complexes for application dye‐sensitized solar cells (DSSC). The replacement traditional 4,4'‐dicarboxy‐2,2'‐bipyridine by this aromatic results excellent tuning the redox potentials excited state properties these Ir III complexes, one which exhibits good efficiency when as dye DSSC. All demonstrate reversible...
New series of Ln (III) adducts with triazole-based ligands has been synthesized and characterized as potential fluorescent emitters. The general formulas are (C2H6O2) (H2O)2(NO3)3∙2bpt∙2H2O where – Sm (1), Eu (2), Gd (3), Tb (4) Dy (5); bpt - 3,5-bis(pyridine-4-yl)-1,2,4-triazole. crystal structures 2 4 were determined by single-crystal X-ray analysis. Luminescence studies have carried out for the complexes in solid-state phase. All luminescence spectra showed characteristic emission bands...
A series of mononuclear aryl-substituted cyclopentadienyl complexes [CpPh3LnCl2(Me3tach)] (Ln = Tb (4), Ln Nd (5)), [CpPh2ArTbCl2(Me3tach)] (6), and [CpPh3LnCl2(Me3tacn)] (7), (8), CpPh3: 1,2,4-triphenylcyclopentadienyl, CpPh2Ar: 1,2-diphenyl-4-(o-methoxyphenyl)cyclopentadienyl, Me3tach: 1,3,5-trimethyl-1,3,5-triazacyclohexane, Me3tacn: 1,4,7-trimethyl-1,4,7-triazacyclononane) have been synthesized from polynuclear precursors, using cyclic tridentate nitrogen-based ligands to prevent...
New fluorescent D-A-D dyes containing 9-(p-tolyl)-2,3,4,4a,9,9a-hexahydro-1H-carbazole as a donor unit and 2,1,3-benzochalcogenadiazoles an electron-withdrawing group were synthesized. The photoluminescent electroluminescent properties of novel for OLED application investigated. It was demonstrated that the replacement lightweight heteroatoms by heavier ones enables fine tuning maximum emission without significantly reducing luminescence quantum yield. yield value 62.6% derivatives based on...