217321-61-4Relevant academic research and scientific papers
Functionalized 1,1-ethene dithiolates as ligands, V [1]. Synthesis and crystal structure of palladium(II) and platinum(II) complexes with dithioylidene barbituric acid ligands. Molecular structure of a 2,6-diaminopyridine-platinum(II) barbiturate complex
Weigand, Wolfgang,Plener, Veronika,Noeth, Heinrich,Krossing, Ingo,Knizek, Joerg,Schmidt, Martin
, p. 1135 - 1143 (1998)
The 1,1-ethene dithiolato ligands (dithioylidene barbituric acids) 2a-f react with palladium(II) and platinum(II) compounds L2MCl2 [M = Pd, Pf, L = PEt3, PBu3, PPh3, 1/2 dppe, 1/2 (-)-DIOP, 1/2 2,9-dimethyl phenanthroline] to give the 1,1-ethene dithiolato metal complexes L2M[S2C=C-C(O)-NR1-C(O)-NRZ-C(O)] 3-7. Compound 4a forms a 1:1 adduct (8) with 2,6-diaminopyridine. The compounds were characterised on the basis of their IR and NMR (1H, 13C, 31P) spectra. Complexes 4a, 4c, and 5a were further studied by X-ray structural analysis. The barbituric unit in 4a undergoes self-assembly through multiple hydrogen-bonding with complementary 2,6-diaminopyridine yielding the supramolecular complex 8.
