
TY  - JOUR
A1  - Chia, PSK 
A1  - Livingstone, SE 
A1  - Lockyer, TN 
T1  - Sulphur-nitrogen chelating agents. II. Metal complexes of 2-(2-Methylthioethyl) pyridine
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1966
VL  - 19
IS  - 10
SP  - 1835
EP  - 1845
KW  - 
UR  - https://doi.org/10.1071/CH9661835 
N2  - 2-(2-Methylthioethyl)pyridine (N-SMe) has been prepared and its structure has been confirmed by N.M.R. measurements. Complexes with palladium(II), platinum(II), copper(II), copper(I), silver(I), and mercury(II) were obtained but attempts to prepare complexes of cobalt(II) and nickel(II) were unsuccessful. The mono-chelated complexes MX2(N-SMe) (M = Pd, Pt; X = Cl, Br, I, SCN), CuX2(N-SMe) (X = Cl, Br), AgClO4(N-SMe), and HgCl2(N-SMe), and the bis-chelated complexes [M(N-SMe)2](ClO4)2 (M = Pd, Pt, Cu, Hg) and [Cu(N-SNe)2]ClO4 were characterized.   Conductimetric titrations of [Pd(N-SMe)2](ClO4)2 in nitrobenzene gave end-points after the addition of two equivalents of halide ion due to the loss of one molecule of ligand to yield PdX2(N-SMe). The platinum complex [Pt(N-SMe)2](ClO4)2 gives two end-points, the first corresponding to the formation of [Pt(N-SMe)2X]+ (X = Br, I).   The solid reflectance spectra of CuX2(N-SMe) differ from the absorption spectra in nitromethane solution, indicating a polymeric tetragonal structure in the solid state. The ligand molecules in [Cu(N- SMe)2](ClO4)2 are readily replaced by pyridine. This complex can be reduced to the copper(I) complex [Cu(N-SNe)2]ClO4. The infrared spectrum of AgClO4(N-SMe) seems to indicate that the perchlorato groups are coordinated and the insolubility of the compound suggests a polymeric structure. The mercury complexes apparently contain tetrahedral mercury(II). 
ER  -

