Dl. An et al., REACTIONS OF (THF) W(CO)(5) WITH SOME DIPHOSPHENES CARRYING BULKY ARYL AND PHENOXY GROUPS, Journal of organometallic chemistry, 508(1-2), 1996, pp. 7-12
The reaction of (THF)W(CO)(5) (THF = tetrahydrofuran) with asymmetrica
l diphosphenes carrying bulky aryl and phenoxy groups gave end-on-type
complexes on either phosphorus atom. One of the complexes was analyze
d by X-ray crystallography indicating that the major complex suffers l
ess from the steric bulk.