In the title compound, C14H29B10P, the diisopropylphosphine and phenyl
groups are bonded to the C atoms of the 1,2-dicarbadodecaborane cage.
Bond lengths are P-C-cage 1.879 (3), P-Ci(Pr) 1.866 (4) and 1.881 (4)
, and C-cage-C-cage 1.769 (4) Angstrom. The elongation of the C-cage-C
-cage bond is discussed.