Synthesis of New Phosphorus Ligands and Their Reactions with Palladium (II) Halide: A Multi Nuclear NMR Study

Synthesis and characterization of new nitrate-bridged polymeric complexes of mercury(II) with phosphorus ylides

“…The most interesting aspect of the 13 C NMR spectra of the complexes is the up field shift of the signals due to ylidic carbon. Similar up field shifts of 2-3 ppm with reference to the parent ylide were also observed in the case of [Ph 3 PC 5 H 4 HgI 2 ] 2 [23] and in our synthesized Hg(II) complexes [24,25]. High solubility of 2d in CDCl 3 allowed us to record the spectrum in this solvent but, for the others, we had to use DMSO-d 6 and the presence of a solvent septet peak at 39.5 ppm in the CH resonance region prevented the observation of these signals.…”

Synthesis, characterization and biological activities of N-heteroaromatic hydrazones and their complexes with Pd(II), Pt(II) and Cd(II)

“…Coordination via the azomethine nitrogen can be substantiated by a distinctive change of chemical shift of the carbon atom C9 in the 13 C NMR spectrum and downfield shift of proton H-N3 in the 1 H NMR spectrum. Upon coordination of the carbonyl group to metal centers in various complexes with ester derivatives of acetic acid, the carbonyl carbon atom signal in the 13 C NMR spectra is generally shifted strongly downfield [17][18][19][20]. Coordination of the carbonyl group in complexes 1-4 is excluded, since there are no significant changes in chemical shifts of carbonyl carbon atoms (C9/C11) in the 13 C NMR spectra.…”

Synthesis and multinuclear NMR study of Hg(II), Cd(II), and Pd(II) complexes with biphenylmethylenetriphenylphosphorane: X-ray crystal structure of [{C6H5C6H4CO{(C6H5)3P}CH}HgI2]2

“…The reaction of {(p-tolyl) 3 PCHCOOCH 2 C 6 H 5 }, BTPY, with mercury(II) halides have been reported by Sabounchei et al [10] and characterized by IR-, 1 H-, 13 C-, and 31 P-NMR spectra. In the compounds reported to date, the chemical behavior of the -keto phosphorus ylides has been clearly dominated by the C form [7,8,[10][11][12][13] and very few examples of O-coordinated ylides are known [14][15][16] [17]. Although ortho-metallation reactions are common in the chemistry of platinum and this was not the first example of ortho-metallation of an ylide [18], we thought it of interest to study this reaction.…”