| Attributes | Values |
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| rdf:type
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| Description
| - DA-komplexům vyšších oxidů síry a selenu s organickými O-donory nebyla dosud věnována dostatečná pozornost, přestože z vysoké Lewisovy acidity těchto oxidů a bazicity kyslíkových atomů v organických O-donorech plyne možnost jejich existence a v případě dostatečné stability i jejich potenciální praktické využití. Ve snaze připravit dostatečně stabilní adukt oxidu selenového jsme jako kyslíkatý donor použili pyridin-N-oxid, v němž nejsou na donorový atom vázány skupiny schopné migrace. Reakcí obou komponent v nitromethanu byl získán mikrokrystalický DA-komplex C5H5NO.SeO3 v prakticky kvantitativním výtěžku. Adukt byl charakterizován Ramanovou spektroskopií, elementární a rtg. strukturní analyzou. Sloučenina je termicky stabilní a lze ji uchovávat i několik měsíců při laboratorní teplotě. Ponechá-li se však reakční směs bez vnějšího zásahu po dobu dvou týdnů, krystaluje z ní 2pyO.Se2O5 obsahující Se(IV) a Se(VI) v ekvimolárním zastoupení. (cs)
- Donor-acceptor compounds of higher selenium and sulphur oxides with organic oxygen donor attract relatively low attention, even thought a high Lewis acidity of these oxides and basicity of oxygen atoms in organic oxygen donor molecules imply their existence and in the case of sufficient stability also their practical use. In our attempts to isolate a stable adduct of selenium trioxide we used pyridine-N-oxide as an oxygen base with no groups capable of migration. A white microcrystalline DA-complex C5H5NO.SeO3 was isolated by the reaction both components in nitromethane in nearly quantitative yield. The adduct was characterized by RA spectroscopy, elemental and X-ray structure analyses. C5H5NO.SeO3 is thermally stable and it is possible to store it for several months at laboratory temperature. If the reaction mixture is left without any disturbance for two weeks, crystals of 2pyO.Se2O5 appeared, as a result of redox reaction leading to this Se(IV)/Se(VI) compound.
- Donor-acceptor compounds of higher selenium and sulphur oxides with organic oxygen donor attract relatively low attention, even thought a high Lewis acidity of these oxides and basicity of oxygen atoms in organic oxygen donor molecules imply their existence and in the case of sufficient stability also their practical use. In our attempts to isolate a stable adduct of selenium trioxide we used pyridine-N-oxide as an oxygen base with no groups capable of migration. A white microcrystalline DA-complex C5H5NO.SeO3 was isolated by the reaction both components in nitromethane in nearly quantitative yield. The adduct was characterized by RA spectroscopy, elemental and X-ray structure analyses. C5H5NO.SeO3 is thermally stable and it is possible to store it for several months at laboratory temperature. If the reaction mixture is left without any disturbance for two weeks, crystals of 2pyO.Se2O5 appeared, as a result of redox reaction leading to this Se(IV)/Se(VI) compound. (en)
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| Title
| - The Reaction of Selenium Trioxide with Pyridine-N-oxide.
- The Reaction of Selenium Trioxide with Pyridine-N-oxide. (en)
- Reakce oxidu selenového s pyridin-N-oxidem (cs)
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| skos:prefLabel
| - The Reaction of Selenium Trioxide with Pyridine-N-oxide.
- The Reaction of Selenium Trioxide with Pyridine-N-oxide. (en)
- Reakce oxidu selenového s pyridin-N-oxidem (cs)
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| skos:notation
| - RIV/00216224:14310/03:00009617!RIV08-MSM-14310___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00216224:14310/03:00009617
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - DA-complex; Selenium trioxide; pyridine-N-oxide; Crystal structure; Raman spectra (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...v/mistoKonaniAkce
| - Dresden, 27. 2. - 1. 3. 2003
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| http://linked.open...i/riv/mistoVydani
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| http://linked.open...i/riv/nazevZdroje
| - Book of Abstracts - Euregionale 2003, 5. JCF-Frühjahrssymposium
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Richtera, Lukáš
- Toužín, Jiří
|
| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| http://linked.open...n/vavai/riv/zamer
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - Technische Universität Dresden
|
| http://localhost/t...ganizacniJednotka
| |
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