A 48 Aminomethyl bi- and terpyridines as luminescent probes for Zn2+ ions [Electronic resource] / V. N. Kozhevnikov, O. V. Shabunina, A. R. Sharifullina, V. L. Rusinov, O. N. Chupakhin, B. Koenig // Mendeleev Communications. - 2005. - Vol. 15, № 1. - P8-9 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: 2,2'-Bi- and 2,2':6',2"-terpyridines, bearing aminomethyl and aryl substituents, show a significant increase in emission intensity and bathochromic emission wavelength change upon the addition of zinc ions in aqueous solution, and they can be used as luminescent probes for zinc ions in physiological media. \\\\Expert2\\nbo\\Mendeleev Communications\\2005, v.15, p.8.pdf |
W 63 White-Light Emission from an Assembly Comprising Luminescent Iridium and Europium Complexes [Text] / P. Coppo, M. Duati, V. N. Kozhevnikov, J. W. Hofstraat, L. De Cola // Angewandte Chemie International Edition . - 2005. - V. 44, № 12. - P1806-1810 : фото . - ISSN 1433-7851 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Red, white, and blue: White light was obtained by partial energy transfer (ET) between a blue-emitting IrIII-phenylpyridine complex and a red-emitting EuIII-terpyridine chelate through excitation of the assembly that is formed from the two metal complexes (see picture). |
S 98 Synthesis of cyclometallated platinum complexes with substituted thienylpyridines and detailed characterization of their luminescence properties [Text] / D. N. Kozhevnikov, V. N. Kozhevnikov, M. M. Ustinova, A. Santoro, D. W. Bruce, B. Koenig, T. Fisher, M. Zabel, H. Yersin // Inorganic Chemistry . - 2009. - Vol. 48, № 9. - P4179-4189 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Synthesis of various derivatives of 2-(2-thienyl)pyridine via substituted 3-thienyl-1,2,4-triazines is reported. The final step of the synthesis is a transformation of the triazine ring to pyridine in an aza-Diels-Alder-type reaction. The resulting 5-aryl-2-(2-thienyl)pyridines (HL1-HL4) and 5-aryl-2-(2-thienyl)cyclopenteno[c]pyridines (HL5-HL8) (with aryl = phenyl, 4-methoxyphenyl, 2-naphtyl, and 2-thienyl) were used as cyclometallating ligands to prepare a series of eight luminescent platinum complexes of the type [Pt(L)(acac)] (L = cyclometallating ligand, acac = acetylacetonato). X-ray single crystal structures of three complexes of that series, [Pt(L5)(acac)] = [Pt(5-phenyl- 2-(2-thienyl)cyclopenteno[c]pyridine)(acac)], [Pt(L6)(acac)] = [Pt(5-(4-methoxy)-2-(2-thienyl)cyclopenteno[c]py- ridine)(acac)], and [Pt(L7)(acac)] = [Pt(5-(2-naphtyl)-2-(2-thienyl) cyclopenteno[c]pyridine)(acac)] were determined. Photoluminescence and electronic absorption spectra of the new [Pt(L)(acac)] complexes are reported. For two representative compounds of that series, [Pt(L4)(acac)] and [Pt(L5)(acac)], a detailed photophysical characterization based on highly resolved emission and excitation spectra, as well as on emission decay properties, was carried out. The studies down to low temperature (T = 1.2 K) and up to high magnetic fields (6 = 10 T) allowed us to characterize the three individual substates of the emitting triplet state. In particular, it is shown that the lowest triplet states of [Pt(L4)(acac)] and [Pt(L5)(acac)] are largely ligand-centered (LC) of3jtjt*character, which experience only weak spin- orbit couplings to higher lying singlet states |
L 96 Luminescence in Ln2CaGe4O12 under infrared laser excitation [Text] / V. G. Zubkov, I. I. Leonidov, N. V. Tarakina, O. V. Koryakova // Journal of Luminescence. - 2009. - Vol. 129, № 12. - P1625-1628 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Luminescent properties of the new group of crystalline optical materials Ln2CaGe4O12, Ln=Dy, Ho, Er, Tm, Yb were studied under laser excitation at ?=976 nm in the stationary mode. Er2CaGe4O12, Ho2CaGe4O12 and also the solid solution LnxY2-xCaGe4O12 (0?x?2) may be used in photonics as optical elements, such as converters and resonance amplifiers???? \\\\Expert2\\nbo\\Journal of Luminescence\\2009, v. 129, p.1625.pdf |
В 58 Влияние температуры на люминесцентные свойства n-арил-3-аминопропионовых кислот= Temperature effect on luminescent properties of n-aryl-3-aminopropionic acids [] / Л. К. Неудачина, Н. В. Печищева, Е. В. Осинцева, К. Ю. Шуняев, Ю. Г. Ятлук // Аналитика и контроль. - 2008. - Т. 11, № 4. - С. 281-288. - Библиогр.: с. 288 (10 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Представлены результаты по исследованию влияния температуры на флуоресцентные свойства реагентов класса N-арил-3-аминопропионовых кислот, находящихся в водных растворах и в кристаллическом состоянии, на примере N,N-ди(2-карбоксиэтил)анилина и N,N-ди(2-карбоксиэтил)-3,4-ксилидина. Установлено, что различие спектров флуоресценции растворов исследуемых реагентов и их кристаллов, зарегистрированных при комнатной температуре и 77 К, может определяться основностью атома азота аминогруппы соединений, а также особенностями фотопереноса протона к молекулам растворителя |
S 98 Synthesis of Functionalized Fluorescent Europium(III) Terpyridyl Chelates [Text] / V. N. Kozhevnikov, D. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin, B. Konig // Synthesis. - 2003. - № 15. - P2400-2404. - Bibliogr. : p. 2404 (19 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): DIELS-ALDER REACTION -- HETEROCYCLES -- LANTHANIDE -- LIGANDS -- PYRIDINES -- EUROPIUM Аннотация: The synthesis of substituted terpyridines via triazine intermediates is described. The intermediates allow the facile introduction of cyano groups, which are converted into amino diacetic acid moieties. Together with the terpyridine nitrogen atoms they shield coordinated europium(III) ions completely from the solvent. The terpyridines may be further functionalized for specific applications using ligands, bromo substituents, and standard transition metal mediated coupling methods. This makes the title compounds valuable intermediates for the preparation of luminescent probes in biochemistry, medicinal diagnostics or materials science. \\\\Expert2\\nbo\\Synthesis\\2003, v.15. p.2400.Chupakhin.pdf |
C 52 Chiroptical properties and new derivatives of cyclopalladated 6-ferrocenyl-2,2-bipyridine. Molecular structure of a tert-butyl isocyanide derivative [Electronic resource] / L. A. Bulygina, Z. A. Starikova, K. K. Babievskii, I. A. Utepova, V. L. Rusinov, O. N. Chupakhin, V. I. Sokolov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2008. - Vol. 57, № 10. - P2214-2216 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Optically active cyclopalladated 6-ferrocenyl-2,2?-bipyridine has been studied by circular dichroism and luminescent spectroscopy; a replacement of the chloride ion at palladium with the rhodanide ion and tert-butyl isocyanide molecule has been carried out; molecular structure of the product in the latter case has been determined by X-ray diffraction analysis \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2008, 57 (10), 2214-2216.pdf |
1,2,4-Triazine method of bipyridine ligand synthesis for the preparation of new luminescent Eu(III) complexes [Text] / A. M. Prokhorov, V. N. Kozhevnikov, D. S. Kopchuk, D. N. Kozhevnikov // Tetrahedron. - 2011. - Vol. 67, № 3. - P597-607 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The ‘triazine’ methodology for the synthesis of functionalised bipyridine ligands proved to be a convenient method for the preparation of luminescent Eu(III) complexes. The approach allows flexible construction of chromophore and coordination sphere with control of photophysical properties. Europium (III) complexes [Eu1]-[Eu5] prepared in this way exhibit intense long-life metal-centered luminescence in aqueous media. The aromatic substituent in the position 5 of bipyridine has a significant influence on luminescence parameters and is used to introduce functionality for bioconjugation. The complexes [Eu4] and [Eu5] bearing primary amine groups are ready-to-go luminescent ‘tags’ for peptide labeling \\\\Expert2\\nbo\\Tetrahedron\\2011, v. 67, p. 597.pdf |
L 96 Luminescent metallocomplexes of functionalized pyridines : from ligand design towards special properties [Text] : доклад, тезисы доклада / D. N. Kozhevnikov, D. S. Kopchuk, M. Z. Shafikov, A. M. Prokhorov // International conference "Topical Problems of Organometallic and Coordination Chemistry", V Razuvaev lectures, N. Novgorod, September 3-9 2010 : book of abstracts . - Nizhny Novgorod, 2010. - S13 : рис. Рубрики: ХИМИЧЕСКИЕ НАУКИ |
S 89 Structure and luminescence properties of nanostructured solid-state solutions of Sc 1-xEu x(CH 3CO 2) 3 [Электронный ресурс] / V. N. Krasil'nikov, O. I. Gyrdasova, I. V. Baklanova , L. A. Perelyaeva, E. F. Zhilina, E. G. Vovkotrub // Theoretical and Experimental Chemistry . - 2012. - Vol.48, №2. - P113-117 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): EMISSION SPECTRA -- IR AND RAMAN SPECTRA -- PRECURSOR SYNTHESIS METHODS Аннотация: Nanosized solid-state solutions of Sc 1-xEu x(CH 3CO 2) 3 (x = 0.01-0.1) have been obtained and their morphology, structure, vibrational and luminescence properties studied. The experimental IR and Raman spectra are in accord with the structures assigned to these compounds. A spectroscopic study showed that scandium acetate doped with 10 at.% Eu 3+ holds interest as a potential luminescent material active in the visible spectrum. Solid-state solutions of Sc 1-xEu x(CH 3CO 2) 3 can be used as precursors for obtaining nanosized oxides Sc 2-2xEu 2xO 3 with specified particle morphology \\\\Expert2\\NBO\\Theoretical and Experimental Chemistry\\2012, V.48, № 2, p.113.pdf |
2-Hydroxybenzaldehyde (2-phenylquinazolin-4-yl)hydrazones [Electronic resource] / T. V. Trashakhova, E. V. Nosova, P. A. Slepukhin, M. S. Valova, G. N. Lipunova, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №11. - С. 2347-2353. - Bibliogr. : p. 2353 (23 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SALICYLIDENEHYDRAZINE -- ZINC(II) COMPLEXES -- PHOTOLUMINESCENT Аннотация: N-(2-Phenylquinazolin-4-yl)-N´ salicylidenehydrazines and their ZnII complexes were obtained. The structures and luminescent properties of these new quinazoline derivatives were examined \\\\expert2\\NBO\\Russian Chemical Bulletin\\2011, 60 (11), 2347-2353.pdf |
S 60 Sileymanova, A. F. The use of the 1,2,4-triazine method of pyridine ligand synthesis for the preparation of a luminescent Pt(II) labeling agent / A. F. Sileymanova, D. N. Kozhevnikov, A. M. Prokhorov // Tetrahedron Letters. - 2012. - Vol.53. - С. 5293-5296. - Bibliogr. : p. 5295-5296 (31 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 1,2,4-TRIAZINE -- LIGANDS -- SYNTHESIS Аннотация: The ‘triazine’ methodology for the synthesis of functionalized pyridine ligands proved to be a convenient method for the preparation of a luminescent Pt(II) complex. The key ligand can be assembled easily starting from readily accessible reagents. Further cycloplatination and post-functionalization led to the ready-to-go luminescent ‘tag’ 2 for peptide labeling \\\\expert2\\NBO\\Tetrahedron Letters\\2012, v. 53, p. 5293.pdf |
S 98 Synthesis, photochemical and luminescent properties of (E)-2-(2-hydroxyarylethylene)-3-phenylquinazolin-4(3H)-ones [Electronic resource] / I. G. Ovchinnikova, G. A. Kim, E. G. Matochkina, M. I. Kodess, N. V. Barykin, O. S. Eltsov, E. V. Nosova, G. L. Rusinov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2015. - Vol. 63, № 11. - С. 2467-2477. - Bibliogr. : p. 2477 (22 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): (E)-2-STYRYLQUINAZOLIN-4(3H)-ONES -- LUMINESCENCE -- ORTHO-HYDROXYSTYRYLQUINAZOLINONES Аннотация: Photoinduced transformations of 2-styrylquinazolinones in solutions were studied using absorption and NMR spectroscopy methods. A possibility of control of the photochemical isomerization rate of quinazolinone 2-(hydroxyaryl)ethenyl derivatives by changing the pH of the medium was demonstrated. The bases and the solvent nature also affect the luminescence intensity of solutions of these compounds in the wavelength range of 550-650 nm. The differences in the steric organization of the ortho-hydroxystyryldiazinone system in crystals and in solutions related to the turn of the aryl group were found. Their influence on the competing processes of luminescence and photochemical transformation of the ethylene fragment were shown. The fact of reversible photo/thermal E-Z-isomerization was established for (E)-2-(2-hydroxystyryl)-3-phenylquinazolin-4(3H)-one. \\\\expert2\\nbo\\Russian Chemical Bulletin\\2015, 63 (11), 2467-2477.pdf |
N 52 New 2H-[1,2,3]triazolo[4,5-e][1,2,4]triazolo[1,5-a]pyrimidine derivatives as luminescent fluorophores for detection of nitroaromatic explosives [Electronic resource] / E. V. Verbitskiy, E. B. Gorbunov, A. A. Baranova, K. I. Ludovik, K. O. Khokhlov, E. M. Cheprakova, G. A. Kim, G. L. Rusinov, O. N. Chupakhin, V. N. Charushin // Tetrahedron. - 2016. - Vol. 72, № 32. - С. 4954-4961 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CARBAZOLE -- NITROAROMATIC EXPLOSIVES -- TRIPHENYLAMINE \\\\expert2\\NBO\\Tetrahedron\\2016, v. 72 , p. 4954-4961.pdf |
S 98 Synthesis and Photophysical Studies of 2-(Thiophen-2-yl)-4-(morpholin-4-yl) quinazoline Derivatives [Electronic resource] / E. V. Nosova, T. N. Moshkina, G. N. Lipunova, D. S. Kopchuk, P. A. Slepukhin, I. V. Baklanova , V. N. Charushin // European Journal of Organic Chemistry. - 2016. - № 16. - С. 2876-2881 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PHOTOPHYSICS -- CHARGE TRANSFE -- FLUORESCENCE Аннотация: The synthesis of a series of push-pull aryl and arylethynyl 2-(thiophen-2-yl) quinazoline derivatives is presented. The photophysical properties of the newly generated compounds are also described. Functionalization of the (2-thienyl) quinazoline fluorophore at the 5'-position with aryl and arylethynyl moieties was performed using bromination and subsequent palladium-catalyzed cross-coupling reactions. Optical studies revealed that 4-(diethylamino) phenyl and 4-(diphen-ylamino) phenyl derivatives emit green light upon irradiation, whereas their 4-(9H-carbazol-9-yl) phenyl, methoxyphenyl, thienyl and arylethynyl counterparts are characterized by blue light emission capabilities. The effect of protonation has also been studied, and the ability of some of these molecules to function as colorimetric and luminescent pH sensors has been demonstrated with significant color changes and luminescence switching upon the introduction of acid. \\\\expert2\\NBO\\European Journal of Organic Chemistry\\2016, №16. p.2876-2881.pdf |
C 98 Cyclometallated Pt-II complexes of 2-(2-thienyl)-4-(cycloalkylimino)-substituted quinazolines [Electronic resource] / E. V. Nosova, T. N. Moshkina, D. S. Kopchuk, G. N. Lipunova, P. A. Slepukhin, V. N. Charushin // Mendeleev Communications. - 2016. - Vol. 26, № 2. - С. 129-130 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PLATINUM COMPLEXES -- DIODES Аннотация: The title complexes were prepared based on 2-(thiophen-2-yl)-4-(morpholin-4-yl)- and 2-(thiophen-2-yl)-4-(piperidin-1-yl)-substituted quinazolines and found to exhibit luminescent properties \\\\expert2\\NBO\\Mendeleev Communications\\2016, v.26, p. 129-130.pdf |
C 91 Crystal structure, spectral and thermal properties of 1,2-bis[2-(4,4,4-trifluoro-1-hydroxy-3-oxobut-1-enyl)phenoxy]-ethane and luminescent properties of its complexes with Al(III) and Eu(III) [Electronic resource] / L. A. Khamidullina, K. L. Obydennov, P. A. Slepukhin, I. S. Puzyrev // Journal of Molecular Structure. - 2016. - Vol. 1125. - С. 550-557 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): LANTHANIDE COMPLEXES -- ENOL-TAUTOMERISM -- BETA-DIKETONES Аннотация: Describing the crystal structure, packing, FT-IR, UV-Vis and NMR spectra and thermal properties of new polydentate O-ligand based on aryl-beta-diketone moieties connected by ethylene glycol spacer is the subject of this article. The results of IR, UV-Vis and H-1 NMR spectroscopy as well X-ray crystallography of 1,2-bis[2-(4,4,4-trifluoro-1-hydroxy-3-oxobut-1-enyl)phenoxy]-ethane (BTFPE) indicate that the compound exists in solution and in solid as enol. The crystal structure analysis shows that BTFPE has C2/c group of the monoclinic system. Typical S(6) intramolecular hydrogen bond occurs in each 1,3-diketo moiety. This bond is asymmetric and the H atom is closest to the 0 atom adjacent to the phenyl ring. The packing of the crystal is sustained by numerous C-H center dot center dot center dot O, O-H center dot center dot center dot F, C-H center dot center dot center dot F interactions. In the crystal, supramolecular zig-zag chains are formed along the c-axis. Short contacts interconnect the molecules into a two-dimensional layered structure wherein each molecule is node between chains. According to the thermal investigation this compound is stable up to 200 degrees C in air atmosphere, above this temperature it decomposes. Photoluminescent properties of aluminum(III) and europium(III) complexes of BTFPE were evaluated in chloroform solution and in the solid state. Aluminum complex of BTFPE shows blue luminescence with maximum at 445 nm. Europium complex exhibits intense red color luminescence at 613 nm from central Eu(III) ion through the excitation of the ligand. \\\\expert2\\NBO\\Journal of Molecular Structure\\2016, v.1125, p.550-557.pdf |
K 83 Krinochkin, A. P. Luminescent neutral lanthanide complexes of 5-aryl-2,20-bipyridine-6-carboxylic acids, synthesis and properties / A. P. Krinochkin, D. S. Kopchuk, D. N. Kozhevnikov // Polyhedron. - 2015. - Vol. 102. - С. 556-561 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): LUMINESCENT -- LANTHANIDE COMPLEXES -- SYNTHESIS \\\\expert2\\NBO\\Polyhedron\\2015, v.102, p.556.pdf |
1,2,4,5-Tetrazine derivatives as components and precursors of photo- and electroactive materials / G. N. Lipunova, E. V. Nosova, G. V. Zyryanov [et al.] // Organic chemistry frontiers. - 2021. - Vol. 8, № 18. - P5182-5205 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Extensive research on the synthesis and application of tetrazine derivatives for electronic devices, luminescent elements, photoelectric conversion elements, and image sensors has been published recently. This review covers reported data on the modern trends in the design of functionalized tetrazines obtained within the period 2010–2020. Aryl(heteroaryl) and arylvinyl derivatives of tetrazines and their photoluminescence and application for fluorogenic probes are discussed. Examples of photosensitive oligomers and polymer 3,6-dithienyltetrazines are reviewed. |