The title compound, 11-mu(3)-[(mu-H)(2)CU(PPh(3))]2-(PPh(3))-closo-2,1
-CuSeB10H8}, [CU2(C18H15P)-(C18H25B10PSe)], has an icosahedral closo-
CuSeB10 cage with Cu and Se atoms adjacent [Se1-Cu2 2.3939(6)Angstrom]
. An exo-cage [Cu(PPh(3))]-unit is bonded to one triangular CuB2 face
via a Cu-Cu bond [Cu-2-Cu3 2.6470(7)Angstrom] and two B-H-Cu3 interact
ions [Cu3-H7 1.97(3), Cu3-H11 1.86(2), Cu3 ... B72.234(3), Cu3 ... B11
2.158(3)Angstrom].