Results 1 to 10 of about 168,635 (283)

Impediance spectroscopy of modified potassium titanates. II [PDF]

Электрохимическая энергетика, 2023
The electrochemical and electrophysical properties of basic and protonated potassium titanates in contact with the graphite electrodes were studied using the method of impedance spectroscopy. The characteristics of potassium titanates are given depending
Makarova, Anna Dmitrievna, Goffman, Vladimir Georgievich, Gorokhovskii, Aleksandr Vladilenovich, Tret'yachenko, Elena Vasil'evna, Vikulova, Mariya Aleksandrovna, Morozova, Natal'ya Olegovna, Bainyashev, Aleksei Mikhailovich, Kuz'mina, Vera Maksatovna, Gonnova, Yana Alekseevna   +8 more
doaj   +1 more source

A spectrophotometric study of the protonation processes of some N-[1-(benzimidazol)-1-yl]methylbenzamide derivatives [PDF]

Journal of the Serbian Chemical Society, 2000
The protonation of N-[1-(benzimidazol)-1-yl]methylbenzamide derivatives in aqueous acids (H2SO4) media was investigated, using a spectrophotometric method. The investigated compounds have two protonation processes. The first protonation process occurs in
NADA U. PERISIC-JANJIC, JEVREM D. JANJIC, MARIJA LAZAREVIC   +2 more
doaj   +2 more sources

Protonated Forms of Layered Perovskite-Like Titanate NaNdTiO₄: Neutron and X-ray Diffraction Structural Analysis

Solids, 2021
Structures of partially and completely protonated Ruddlesden–Popper phases, H0.7Na0.3NdTiO4·0.3H2O and HNdTiO4, have been established by means of neutron and X-ray diffraction analysis and compared among themselves as well as with that of the initial ...
Oleg I. Silyukov, Sergey A. Kurnosenko, Iana A. Minich, Ivan A. Rodionov, Irina A. Zvereva   +4 more
doaj   +1 more source

Protonation State of an Important Histidine from High Resolution Structures of Lytic Polysaccharide Monooxygenases

Biomolecules, 2022
Lytic Polysaccharide Monooxygenases (LPMOs) oxidatively cleave recalcitrant polysaccharides. The mechanism involves (i) reduction of the Cu, (ii) polysaccharide binding, (iii) binding of different oxygen species, and (iv) glycosidic bond cleavage ...
Sanchari Banerjee, Sebastian J. Muderspach, Tobias Tandrup, Kristian Erik Høpfner Frandsen, Raushan K. Singh, Johan Ørskov Ipsen, Cristina Hernández-Rollán, Morten H. H. Nørholm, Morten J. Bjerrum, Katja Salomon Johansen, Leila Lo Leggio   +10 more
doaj   +1 more source

Ion mobility spectrometry of N-methylimidazole and possibilities of its determination

Тонкие химические технологии, 2022
Objectives. To determine the ion mobility of N-methylimidazole, establish the structure of ions corresponding to characteristic signals, and determine the detection limit of N-methylimidazole on the ion-drift detector Kerber.Methods.
D. A. Aleksandrova, T. B. Melamed, E. P. Baberkina, A. A. Fenin, E. S. Osinova, А. E. Kovalenko, R. V. Yakushin, Yu. R. Shaltaeva, V. V. Belyakov, D. I. Zykova   +9 more
doaj   +1 more source

Superelectrophiles: Recent Advances

Molecules, 2020
Superelectrophiles are reactive species that often carry multiple positive charges. They have been useful in numerous synthetic methods and they often exhibit highly unusual reactivities.
Douglas A. Klumpp, Maksim V. Anokhin
doaj   +1 more source

Determination and structural correlation of pK BH + for meta- and para- substituted benzamides in sulfuric acid solutions [PDF]

Journal of the Serbian Chemical Society, 2006
The protonation of some meta and para substituted benzamides in sulfuric acid solutions was studied by UV spectroscopy in the 190-350 nm region. Principal component analysis was applied to separate the effect of protonation from the medium effect.
Stojković Goran, Popovski Emil
doaj   +3 more sources

Stability of Dibromo-Dipyrromethene Complexes Coordinated with B, Zn, and Cd in Solutions of Various Acidities

Molecules, 2022
The spectral luminescent properties of dipyrromethenates halogenated with bromine on both ends of the long axis and coordinated using boron fluoride, zinc, or cadmium in neutral ethanol and acidified with hydrochloric acid solutions were studied.
Iuliia Aksenova, Vladimir Pomogaev
doaj   +1 more source

A Reconfigurable, Dual-Output INHIBIT and IMPLICATION Molecular Logic Gate

Frontiers in Chemistry, 2020
Molecules that respond to input stimulations to produce detectable outputs can be exploited to mimic Boolean logic operators and reproduce basic arithmetic functions. We have designed a two-state fluorescent probe with tunable emission wavelength for the
Lavinia A. Trifoi, Gregory K. Hodgson, Nicholas P. Dogantzis, Stefania Impellizzeri   +3 more
doaj   +1 more source

Computational Analysis of Histamine Protonation Effects on H₁R Binding

Molecules, 2023
Despite numerous studies investigating histamine and its receptors, the impact of histamine protonation states on binding to the histamine H1-receptor (H1R) has remained elusive.
Marcus Conrad, Anselm H. C. Horn, Heinrich Sticht   +2 more
doaj   +1 more source