AI Article Synopsis
- The study involves NMR spectroscopy to analyze the interactions of gold(III), palladium(II), and platinum(II) chloride complexes with various dimethylpyridines and trimethylpyridine.
- It reports changes in chemical shifts of protons, carbons, and nitrogens, noting deshielding for protons and carbons and shielding for nitrogens in the complexes.
- The paper discusses the coordination shifts in relation to the complexes' structural factors, including the type of metal, molecular geometry (trans or cis), and the orientation of methyl groups on the pyridine ring.
Article Abstract
(1)H, (13)C and (15)N NMR studies of gold(III), palladium(II) and platinum(II) chloride complexes with dimethylpyridines (lutidines: 2,3-lutidine, 2,3lut; 2,4-lutidine, 2,4lut; 3,5-lutidine, 3,5lut; 2,6-lutidine, 2,6lut) and 2,4,6-trimethylpyridine (2,4,6-collidine, 2,4,6col) having general formulae [AuLCl(3)], trans-[PdL(2)Cl(2)] and trans-/cis-[PtL(2)Cl(2)] were performed and the respective chemical shifts (delta(1H), delta(13C), delta(15N)) reported. The deshielding of protons and carbons, as well as the shielding of nitrogens was observed. The (1)H, (13)C and (15)N NMR coordination shifts (Delta(1H) (coord), Delta(13C) (coord), Delta(15N) (coord); Delta(coord) = delta(complex) - delta(ligand)) were discussed in relation to some structural features of the title complexes, such as the type of the central atom [Au(III), Pd(II), Pt(II)], geometry (trans- or cis-), metal-nitrogen bond lengths and the position of both methyl groups in the pyridine ring system.
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| http://dx.doi.org/10.1002/mrc.2594 | DOI Listing |
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