
%0 Journal Article
%A Skelton, BW 
%A White, AH 
%T Crystal structures of N,N,N',N'-Tetramethylthiuram monosulphide and Diiodo(N,N,N',N'-tetramethylthiuram monosulphide)mercury(II)
%J Australian Journal of Chemistry
%D 1977/08/01
%V 30
%N 8
%P 1693-1699
%K 
%R https://doi.org/10.1071/CH9771693
%U https://www.publish.csiro.au/paper/CH9771693 
%X The crystal structures of the title compounds, Me2NC(S)SC(S)NMe2 (tmtm) and I2Hg(tmtm), have been determined by single-crystal X-ray diffraction at 295 K and refined by full-matrix least squares to residuals of 0.038 and 0.050 respectively for 1080 and 1532 ?observed? reflections.     The ligand tmtm is monoclinic, P21/a, a 14.096(4), b 7.457(3), c 10.178(3)&#506;, &#946; 110.55(3)°, Z4. The complex I2Hg(tmtm) is orthorhombic, P212121, a 12.910(3), b 12.441(3), c 9.863(2) &#506;, Z4.     The structure of the ligand comprises a pair of planar Me2NCS2 fragments linked at the common central sulphur atom with a dihedral of 78.4°. As in the related tetraethylthiuram disulphide, the ?CS2- geometry is very asymmetric: <C=S> 1.657; <C-S> 1.793 &#506;; <S-C-S> 119.3; <S-C-N> 115.2; <S=C-N> 125.4°; with C-S-C, 103.2(2)°. The metal-atom geometry in I2Hg(tmtm) is pseudo-trigonal prismatic, as in I2Hg(Me2NCS2- S2CNMe2), the prism apex being occupied by a ligand sulphur atom, but considerable changes are observed in the geometry about the metal as a consequence of the change in the ligand ?bite?. 
