Versatility of the co-ordination behaviour of 1-methylpyrimidine-2-thione towards metal ions of the first transition series
- 1 January 1978
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 12,p. 1705-1709
- https://doi.org/10.1039/dt9780001705
Abstract
The preparations are reported of complexes of 1-methylpyrimidine-2-thione (L) with MnII, CoII, NiII, CuII, and ZnII A combination of X-ray, electronic spectral, i.r., and e.s.r. studies has been employed to deduce the co-ordination geometries. The complexes [ML4][ClO4]2·2Me2CO (M = Mn, Co, or Zn) contain tetrahedral [ML4]2+ ions with L co-ordinated via N. Zero-field splitting parameters have been evaluated for the manganese complex. The thione ligand chelates via N and S in a range of complexes such as [CoL3][ClO4]2, [CuLX2](X = Cl or Br) and, with varying degrees of distortion, in metal halide complexes ML2X2(M = Mn, Co, or Ni). Copper(II) perchlorate or tetrafluoroborate are reduced by L to give CuI 2L3X2(X = ClO4 or BF4).Keywords
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