IN-4(C(SIME(3))(3))(4) WITH IN-4-TETRAHEDRON AND IN4SE4(C(SIME(3))(3))(4) WITH IN4SE4-HETEROCUBANE STRUCTURE

The reaction of (InBr)-Br-I with LiC(SiMe(3))(3) . 2THF yields the In(I) alkyl In-4{C(SiMe(3))(3)}(4) 1 in 70% yield. 1 was characterized by a crystal structure determination showing a nearly undistorted In, tetrahedron with mean In-In distances of 300.2(1) pm. Reaction of 1 with elemental Se gives In4Se4{C(SiMe(3))(3)}(4) 2 with a slightly distorted In4Se4 hetero cubane structure.