Crystal and molecular structure of bis(5,5-dimethyl-2-oxo-1,3,2-dioxa-phosphorinan-2-yl) oxide
Abstract
The title compound (IIe) crystallises in the orthorhombic space group Pbca, with a= 26.70(2). b= 9.858(8), c= 11.38(1)Å, and Z= 8. The structure has been solved by direct statistical methods and refined by least-squares to R 9.2% for 1 429 observed reflections. Each dioxaphosphorinane ring has a chair conformation with the phosphoryl oxygen in the equatorial position.