CRYSTAL AND MOLECULAR STRUCTURE AND SOLID STATE NMR STUDIES OF BIS(5,5-DIMETHYL-2-OXO-1,3,2-DIOXAPHOSPHORINAN-2-YL) SELENIDE
Autor: | Roman Dembinski, Aleksandra Skowrońska, Michał W. Wieczorek, Marek J. Potrzebowski, JarosŁAw Błaszczyk |
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Rok vydání: | 1995 |
Předmět: | |
Zdroj: | Phosphorus, Sulfur, and Silicon and the Related Elements. 102:15-24 |
ISSN: | 1563-5325 1042-6507 |
DOI: | 10.1080/10426509508042537 |
Popis: | The structural investigation of the phosphoroorganic selenium-containing title compound C10H20O6P2Se (1) was carried out. The structure of 1 has been determined by X-ray analysis and correlated with the solid state NMR studies, its purity and identity was confirmed by elemental analysis. The following crystal data were found: triclinic, P1, a = 5.6557(6) A, b = 10.2717(8) A, c = 13.761(1) A, α = 105.580(7)β, p = 90.992(7)°, γ = 101.745(8)°, and Z = 2. Two six-membered rings in the molecule of 1 are in the chair conformation. The selenium atom which bridges the rings is situated axially with respect to both rings. The exocyclic oxygens are, consequently, in equatorial positions. |
Databáze: | OpenAIRE |
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