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The crystal and molecular structure of the bis( N , N , N ′, N ′-tetramethylethanediamine) adduct of I(Br)InInBr 2 , In 2 Br 3 I•2C 6 H 16 N 2 , an indium–indium bonded molecule

1984; NRC Research Press; Volume: 62; Issue: 3 Linguagem: Inglês

10.1139/v84-101

1480-3291

Masood A. Khan, Clóvis Peppe, Dennis G. Tuck,

Organometallic Complex Synthesis and Catalysis

The crystal structure of the title compound has been determined by the heavy atom method. The crystals are orthorhombic, space group Pbca, with unit cell dimensions a = 22.795(3) Å, b = 17.518(2) Å, c = 12.396(3) Å, Z = 8; R = 0.0409 for 1527 unique "observed" reflections. The structure is disordered, with each halogen site (X) occupied by 75% Br, 25% I. The molecule consists of two X 2 (tmen)In units (tmen = N,N,N′,N′-tetramethylethanediamine) with distorted trigonal bipyramidal geometry, joined by an In—In bond 2.775(2) Å in length.