Abstract
The spectra (IR and NMR) of the nickel(II) and palladium(II) complexes of dithiomalonamide (Hdtma) andN,N′-diphenyldithiomalonamide (Hdpdtma) are discussed in the light of the structure of the bis(N,N′-diphenyldithiomalonamidato) nickel(II) di(N,N-dimethylformamide)solvate. The compound crystallizes in the triclinic space groupP¯1 (No. 2) witha=11.113(2),b=10.173(2),c=9.912(1) Å,a=74.47(6),β=108.83(7),γ=114.10(7)°,Z=1 (R=0.0495 andR w =0.052). The crystals consist of discrete [Ni(dpdtma)2] andN,N-dimethylformamide (DMF) molecules. The nickel atom is chelated by two centrosymmetrically related ligands via sulfur atoms in an approximately squareplanar arrangement. The ligand moiety in the nickel coordination forms aπ-conjugation system. The DMF solvate molecules are involved in hydrogen bonding with the NH groups of the ligand. The best fit of the IR band assignments was obtained by comparing the spectra of the complexes with those of
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Battaglia, L.P., Bonamartini Corradi, A., Marzotto, A. et al. Nickel(II) and palladium(II) complexes of dithiomalonamides: Ligands which favor the formation of π-conjugation systems in the coordination. Journal of Crystallographic and Spectroscopic Research 18, 101–112 (1988). https://doi.org/10.1007/BF01171028
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DOI: https://doi.org/10.1007/BF01171028