Výsledky vyhledávání

Complexing of zinc and eosin porphyrins with viologens in aqueous solutions

Autor: N. K. Khannanov, V.E. Maier, Vladimir A. Kuzmin, Peter P. Levin, V. Ya. Shafirovich

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:231-235

1. The complexing constants of eosin (ZD=−2) and zinc porphyrins (ZD=+4, −4) with charged viologens (ZA=0 to +4) with different ionic strengths were determined. 2. It was shown that ΔG of complexing can be considered the additive sum of the ΔG

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::72564af23df8a8ae3dc07955b8ec3bde
https://doi.org/10.1007/bf00953602

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Synthesis of photosensitizer pairs containing Ru(bpy)3 2+ and an electron acceptor (viologen) linked by a hydrocarbon chain

Autor: V.E. Maier, V. Ya. Shafirovich

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:626-629

Two Ru(bpy)32+-viologen complexes, in which the components are linked by a hydrocarbon chain, were synthesized and characterized by PMR, visible, and UV spectrophotometry.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6f3de3bfc9d5f9e546c5966a473be05
https://doi.org/10.1007/bf00958062

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Viologens with charged groups: New redox carriers in reactions of photocatalytic separation of hydrogen from water in homogeneous and vesicular systems

Autor: A. N. Kitaigorodskii, V.E. Maier, V. Ya. Shafirovich, N. K. Khannanov

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 36:2281-2286

1. Four viologens were synthesized and characterized with the data from chemical analysis, PMR spectroscopy, spectrophotometry, and polarography. 2. The redox potential of the viologen affects the rate constant of liberation of hydrogen from water on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9204c781993cee11d57922499225621
https://doi.org/10.1007/bf00957296

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The flame ionization detector a simple electrometer for linear, logarithmic and integral responses

Autor: V.E. Maier, R.A. Dewar

Publikováno v: Journal of Chromatography A. 15:461-470

A detailed description of a versatile DC electrometer for use with the flame ionization detector is given. The circuit provides for baseline compensation, and for logarithmic and integral responses, obtained by relatively simple electrical devices, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d322859446f7e1c5c8c4c0a8de82850b
https://doi.org/10.1016/s0021-9673(01)82804-1

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High efficiency glass bead columns for gas chromatography

Autor: V.E. Maier, R.A. Dewar

Publikováno v: Journal of Chromatography A. 11:295-300

This paper sets out the results of an investigation into the methods of improving the efficiency of glass bead columns for gas chromatography. Efficiencies, expressed as height equivalent to a theoretical plate (HETP) of the order of 0.8 mm, as compa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bc9cb4b271ee8bdb5c7f7e43cd2dbab
https://doi.org/10.1016/s0021-9673(01)80913-4

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Effect of a magnetic field on the radical-ion yield upon the quenching of the triplet state of erythrosine by viologens

Autor: E. E. Yablonskaya, Peter P. Levin, V. Ya. Shafirovich, Vladimir A. Kuzmin, E. S. Klimchuk, V.E. Maier

Publikováno v: Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 37:1270-1272

1. The application of an external magnetic field of 1.8 kOe leads to 5–10% decrease in the radical-ion yield in electron transfer from the triplet state of erythrosine to viologens in water. 2. The observed effects are explained in the framework of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ad214822abf39d1d5ee848f769d5412d
https://doi.org/10.1007/bf00961955

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ChemInform Abstract: Synthesis of Couples (I) Consisting of a Photosensitizer (Ru(bpy)32+) and an Electron Acceptor (Viologen) Linked by a Hydrocarbon Chain

Autor: V.E. Maier, V. Ya. Shafirovich

Publikováno v: ChemInform. 20

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d9f3bb18042d1481436ba2e5b5360c6
https://doi.org/10.1002/chin.198939277

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