Abstract

The crystal structure determination of Ph 3Te[S 2CN(i-Pr) 2] indicates a most unusual dimeric structure in which the ligand can be considered as acting as a bridge with very long TeS bonds. The crystals are triclinic in space group P 1 with cell parameters a 12.101(3) Å, b 8.728(2) Å, c 12.301(2) Å, α 80.88(2)°, β 102.60(2)°, γ 106.21(2)°, V 1210.9(5) Å 3, Z = 2, R = 0.0267, R w = 0.0340. The immediate environment about each tellurium atom can be described as that of a distorted octahedron. The three TeC (phenyl) bonds are mutually cis with two long TeS bonds of similar length and a lone pair completing the octahedron.

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