Výsledky vyhľadávania

Nájdených záznamov: 2  
Vaša požiadavka: Autor-kód záznamu = "^umb_un_auth 0256102^"
  1. NázovApplication of spectroscopic and theoretical methods in the studies of photoisomerization and photophysical properties of the push-pull styryl-benzimidazole dyes
    Aut.údajeB. Jędrzejewska, B. Ośmiałowski, R. Zaleśny
    Autor Jędrzejewska Beata (40%)
    Spoluautori Ośmiałowski Borys (30%)
    Zaleśny Robert 1977- (30%) UMBFP08 - Katedra chémie
    Zdroj.dok. Photochemical & Photobiological Sciences. Vol. 15, no. 1 (2016), pp. 117-128. - Cham : Springer Nature Switzerland AG, 2016
    Kľúč.slová chémia - chemistry   emisie   izomerácie   emissions   isomerization  
    Jazyk dok.angličtina
    KrajinaVeľká Británia
    Systematika 54
    AnotáciaThe synthesis and spectroscopic properties of a series of substituted 1,3-dimethyl-2-aminostyrylbenzimid-azolium iodides are described and discussed. The products were identified by NMR, IR and UV-Vis spectroscopy and elemental analysis. Their electronic absorption and fluorescence band positions are affected by the character of the substituent and by the solvent polarity. The fluorescence decay of the dyes shows two lifetimes interpreted in terms of emission from two forms of the dye in the excited state. Moreover, the photochemical trans> cis isomerization is reported for these compounds. It occurs from the first excited singlet state of the trans isomer to the cis isomer following a trans-S-0> S-1 excitation. The electron-donating character of the substituent in a styrene moiety is one of the crucial factors influencing the photoisomerization process. The structure of the cis isomer was established by H-1 and N-15 NMR. Experimental studies are supported by the results of quantum chemical calculations.
    URLLink do databázy WoS
    Kategória publikačnej činnosti ADC
    Číslo archívnej kópie37323
    Katal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Báza dátxpca - PUBLIKAČNÁ ČINNOSŤ
    OdkazyPERIODIKÁ-Súborný záznam periodika
    nerozpoznaný

    nerozpoznaný

  2. NázovSynthesis and photophysical properties of novel donor-acceptor N-(pyridin-2-yl)-substituted benzo(thio)amides and their difluoroboranyl derivatives
    Aut.údajeBeata Jędrzejewska ... [et al.]
    Autor Jędrzejewska Beata (20%)
    Spoluautori Zakrzewska Anna (10%)
    Mlostoń Grzegorz (10%)
    Budzák Šimon 1982- (10%) UMBFP08 - Katedra chémie
    Mroczyńska Karina (10%)
    Grabarz Anna M. (10%)
    Kaczorowska Małgorzata A. (10%)
    Jacquemin Denis (10%)
    Ośmiałowski Borys (10%)
    Zdroj.dok. The Journal of Physical Chemistry A. Vol. 120, no. 24 (2016), pp. 4116-4123. - Washington : The American Chemical Society, 2016
    Kľúč.slová bodipy   UV/vis and fluorescence spectroscopy   TD-DFT   UV/vis a fluorescenčná spektroskopia  
    Jazyk dok.angličtina
    KrajinaSpojené štáty
    Systematika 54
    Kategória publikačnej činnosti ADC
    Číslo archívnej kópie37293
    Kategória ohlasu JIA, Junhui - WEN, Juanjuan. Synthesis, characterization, mechanochromism of new AIE-active organoboron compounds derived from salicylaldehyde-based acylhydrazone. In Tetrahedron letters. ISSN 0040-4039, 2021, vol. 71, art. no. 153006, pp. 1-5.
    AGREN, Soumaya - CHAABENE, Marwa - ALLOUCHE, Abdul-Rahman - BEN CHAABANE, Rafik - LAHCINIE, Mohamed - BAOUAB, Mohamed Hassen. Blue highly fluorescent boranil derived from anil ligand : synthesis, characterization, experimental and theoretical evaluation of solvent effect on structures and photophysical properties. In Applied organometallic chemistry. ISSN 0268-2605, 2020, vol. 34, no. 9, pp. 1-15.
    SINGH, Manpreet - VAISHALI - KUMAR, Rakesh - SINGH, Virender. Catalyst-free and metal-free approach towards synthesis of amide- and thioamide-linked beta-carboline-pyridine conjugates and estimation of their photophysical properties. In ChemistrySelect. ISSN 2365-6549, 2020, vol. 5, no. 17, pp. 5172-5179.
    POTOPNYK, Mykhaylo A. 1,3,5,2-oxadiazaborinines as a class of fluorescent organoboron dyes. In Targets in heterocyclic systems : chemistry and properties. ISSN 1724-9449, 2020, vol. 24, pp. 398-418.
    YUAN, Jianyong - YUAN, Yizhong - TIAN, Xiaohui - LIU, Yidan - SUN, Jinyu. Insights into the photobehavior of fluorescent oxazinone, quinazoline, and difluoroboron derivatives : molecular design based on the structure- property relationships. In Journal of physical chemistry C. ISSN 1932-7447, 2017, vol. 121, no. 14, pp. 8091-8108.
    Katal.org.BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici
    Báza dátxpca - PUBLIKAČNÁ ČINNOSŤ
    OdkazyPERIODIKÁ-Súborný záznam periodika
    nerozpoznaný

    nerozpoznaný



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