
%0 Journal Article
%A Baldas, J 
%A Boas, J 
%A Bonnyman, J 
%A Mackay, MF 
%A Williams, GA 
%T Structural studies of technetium complexes. III. The crystal structure of Tris[2-aminobenzenethiolato(2&#8211;)-S, N]technetium(VI) : a trigonal-prismatictechnetium geometry
%J Australian Journal of Chemistry
%D 1982/12/01
%V 35
%N 12
%P 2413-2422
%K 
%R https://doi.org/10.1071/CH9822413
%U https://www.publish.csiro.au/paper/CH9822413 
%X Tris[2-aminobenzenethiolato(2&#8211;)-S,N]technetium(VI), Tc(NHC6H4S)3, has been prepared by the reaction of ammonium pertechnetate with 2-aminobenzenethiol in 0.1 M hydrochloric acid solution at room temperature. The crystal structure of Tc(NHC6H4S)3 has been determined by single-crystal X-ray diffraction methods at 17ºC. Crystals are orthorhombic, space group P212121, with a 10.696(2), b 11.363(1), c l5.220(2) Å, and Z 4. Automatic diffractometry has provided significant Bragg intensities for 1413 independent reflections, and the structure of the correct enantiomorph has been refined by full-matrix least-squares methods to R 0.044. The compound, which is isostructural with the molybdenum analogue, consists of discrete molecules of Tc(NHC6H4S)3. The environment about the technetium atom closely approximates a trigonal-prismatic geometry. This is the first example where this geometry has been established with technetium. Differences in detail between the structures of TC(NHC6H4S)3 and its molybdenum analogue are discussed. In particular the S3N3 coordination polyhedron in TC(NHC6H4S)3is contracted and the distortions from ideal trigonal-prismatic geometry are less than in the molybdenum analogue. 
