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  1. Article ; Online: Recombination of X-ray-Generated Radical Ion Pairs in Alkane Solution Assembles Optically Inaccessible Exciplexes from a Series of Perfluorinated

    Nikul'shin, Pavel V / Fedunov, Roman G / Kuibida, Leonid V / Maksimov, Alexander M / Glebov, Evgeni M / Stass, Dmitri V

    International journal of molecular sciences

    2023  Volume 24, Issue 8

    Abstract: We demonstrate that a series of ... ...

    Abstract We demonstrate that a series of perfluorinated
    MeSH term(s) X-Rays ; Aniline Compounds/chemistry ; Alkanes/chemistry ; Recombination, Genetic
    Chemical Substances N,N-dimethylaniline (7426719369) ; Aniline Compounds ; aniline (SIR7XX2F1K) ; Alkanes
    Language English
    Publishing date 2023-04-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24087568
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: The Kinetics of 1,3-Dipolar Cycloaddition of Vinyl Monomers to 2,2,5,5-Tetramethyl-3-imidazoline-3-oxides.

    Cherkasov, Sergey A / Semikina, Anastasiya D / Kaletina, Polina M / Polienko, Yulia F / Morozov, Denis A / Maksimov, Alexander M / Kirilyuk, Igor A / Bagryanskaya, Elena G / Parkhomenko, Dmitriy A

    ChemPlusChem

    2021  Volume 86, Issue 8, Page(s) 1080–1086

    Abstract: In our previous work [Edeleva et al. Chem. Commun. 2019, 55, 190-193], we proposed a versatile approach to the activation of the homolysis of an aldonitrone group-containing alkoxyamine by 1,3-dipolar cycloaddition to a vinyl monomer. Both nitroxide- and ...

    Abstract In our previous work [Edeleva et al. Chem. Commun. 2019, 55, 190-193], we proposed a versatile approach to the activation of the homolysis of an aldonitrone group-containing alkoxyamine by 1,3-dipolar cycloaddition to a vinyl monomer. Both nitroxide- and alkoxyamine-containing aldonitrones were found to be capable of reacting with the activated alkenes. In the present study, the kinetics of these reactions with 11 different vinyl monomers were investigated using EPR and NMR spectroscopy, and apparent activation energies as well as pre-exponential factors were determined. The influence of monomer structure on the rate of the 1,3-dipolar cycloaddition is discussed. For the vinyl monomers typically used in nitroxide mediated polymerization (styrene, methyl methacrylate) the rate coefficient of cycloaddition to the nitroxide is around k(353 K) ∼4 ⋅ 10
    Language English
    Publishing date 2021-07-26
    Publishing country Germany
    Document type Journal Article
    ISSN 2192-6506
    ISSN (online) 2192-6506
    DOI 10.1002/cplu.202100266
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: PtII diimine chromophores with perfluorinated thiolate ligands: nature and dynamics of the charge-transfer-to-diimine lowest excited state.

    Weinstein, Julia A / Blake, Alexander J / Davies, E Stephen / Davis, Adrienne L / George, Michael W / Grills, David C / Lileev, Igor V / Maksimov, Alexander M / Matousek, Pavel / Mel'nikov, Mikhail Ya / Parker, Anthony W / Platonov, Vyacheslav E / Towrie, Michael / Wilson, Claire / Zheligovskaya, Natalia N

    Inorganic chemistry

    2003  Volume 42, Issue 22, Page(s) 7077–7085

    Abstract: The synthesis of new Pt(II) diimine complexes bearing perfluorinated thiolate ligands, Pt(II)(NN)(4-X-C(6)F(4)-S)(2), where NN = 2,2'-bipyridine or 1,10-phenanthroline and X = F or CN, is reported, together with an investigation of the nature and ... ...

    Abstract The synthesis of new Pt(II) diimine complexes bearing perfluorinated thiolate ligands, Pt(II)(NN)(4-X-C(6)F(4)-S)(2), where NN = 2,2'-bipyridine or 1,10-phenanthroline and X = F or CN, is reported, together with an investigation of the nature and dynamics of their lowest excited states. A combined UV-vis, (spectro)electrochemical, resonance Raman, and time-resolved infrared (TRIR) study has suggested that the HOMO is mainly composed of thiolate(pi)/S(p)/Pt(d) orbitals and that the LUMO is largely localized on the pi*(diimine) orbital, thus revealing the [charge-transfer-to-diimine] nature of the lowest excited state. An enhancement of the thiolate ring vibrations, C-F vibrations, and the vibration of the CN-substituent on the thiolate moiety was observed in the resonance Raman spectra, whereas no such enhancement was seen for the nonfluorinated analogues. Thus, the introduction of fluorine substituents on the thiolate moiety probably leads to a more pronounced contribution of the intrathiolate modes to the HOMO compared to the analogous complexes with nonfluorinated thiolates. Furthermore, the introduction of the p-CN group into the thiolate moiety has allowed the dynamics of the lowest excited state of Pt(bpy)(4-CN-C(6)F(4)-S)(2) to be monitored by picosecond TRIR spectroscopy. The dynamics of the lowest [charge-transfer-to-diimine] excited state are governed by ca. 2-ps vibrational cooling and 35-ps back electron transfer.
    Language English
    Publishing date 2003-11-03
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/ic026286l
    Database MEDical Literature Analysis and Retrieval System OnLINE

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