X-RAY CRYSTAL STRUCTURE OF AN ORGANOINDIUM ALKOXIDE DIMER, (Ph2InOSiMe3)2

Abstract

The solid-state structure of (Ph₂InOSiMe₃)₂, 1, has been established by single-crystal X-ray analysis. Monoclinic crystals of 1 belong to space group P2₁/c, with a = 9.136(1), b = 15.503(2), c = 11.836(1) Å, β=102.46(1)°, Z = 2. Refinement of atomic parameters converged at R = 0.050 (R _w = 0.063) over 1718 observed reflections with I > 3.0σ(I). The dimeric molecule lies on a crystallographic centre of symmetry with In-O = 2.159(7) and 2.149(8) Å, O-In-O = 78.9(3)°, and In-O-In = 101.1(3)°. Compound 1 is only the second example of a simple dimeric organoindium alkoxide to be structurally characterized in this manner.