ISSN:
0025-116X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
7-oxo-5-phenyl-5λ-5-phospha-1,4,6-trioxaspiro[4.4]nonane (3a) (C11H13O4P, monoclinic, P21/n, a = 14,751(2), b = 5,577(1), c = 14,490(3) Å, β = 106,91(2)°, V = 1140,5 Å3, Dx(Z = 4) = 1,398 g · cm-3, MW = 240,20, mp = 80°C) forms hygroscopic white needle-like crystals. The structure was solved by direct methods and the final R value is 0,068. The geometry around the phosphorus is trigonal bipyramidal with two five-membered rings in the apical-equatorial planes. The three P-O bond lengths are 1,615(5) (equatorial), 1,670(4) and, 1,808(4) Å (apical).
Additional Material:
3 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/macp.1984.021850418