
TY  - JOUR
A1  - Baldas, J 
A1  - Colmanet, SF 
A1  - Williams, GA 
T1  - Preparation and Structure of Dibromobis(N,N-diethyldithiocarbamato)-thionitrosyltechnetium(III)
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1991
VL  - 44
IS  - 8
SP  - 1125
EP  - 1132
KW  - 
UR  - https://doi.org/10.1071/CH9911125 
N2  - The title compound, [Tc (NS)(S2CNEt2)2Br2], has been prepared by the reaction of [ TcN (S2CNEt2)2] with SOBr2, and its crystal structure has been determined by single-crystal X-ray diffraction methods at 23±1&#176;C. Crystals are orthorhombic, space group Pnma , with a 14.864(7), b 15.857(7), c 8.938(4)&#506;, and Z 4. Full-matrix least-squares refinement gave a final R value of 0.047 for 1685 independent reflections. The technetium atom is seven-coordinate with a distorted pentagonal- bipyramidal coordination geometry. The thionitrosyl  ligand and a bromo ligand occupy the axial positions, with the thionitrosyl group exerting a small trans influence with Tc-Brtrans 2.595(1) and Tc-Brcis 2.564(1)&#506;. The coordination of the thionitrosyl group is essentially linear with Tc -N=S 177.2(7)&#176;, Tc -N 1.754(9), and N=S 1.504(9)&#506;. 
ER  -

