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
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