Synthesis and characterisation of four- and six-membered P-Se heterocycles.
The preparation, spectroscopic characterisation and crystal structures of [FcP(mu-Se)Se]2, [FcP(mu-Se2)Se]2 and [PhP(mu-Se2)Se]2 are reported. Crystallographic data reveal planar four-membered PSePSe and skewed six-membered P2Se4 rings, respectively, in all cases with trans arrangement of organic substituents and exo selenium atoms. Whilst stable at room temperature in solid state, NMR data suggest the six-membered rings of both the ferrocenyl and phenyl compounds decompose in the solution with loss of red selenium, forming PSe2PSe five-membered rings.
Parveen
Sahrah
S
Department of Chemistry, University of St Andrews, Fife, UKKY16 9ST.
Kilian
Petr
P
Slawin
Alexandra M Z
AM
Woollins
J Derek
JD