The study of the composition and catalytic properties of palladium(II) complexes with poly(VINYLPYRIDINE)

Template‐less synthesis of polymer hollow spheres: an efficient catalyst for Suzuki coupling reaction

“…After deconvolution two separate peaks appeared at 336.47 and 337.37 eV. As stated before, the peak at 337.37 eV is due to the presence of unreacted Pd(II), whereas the new peak that appeared at 336.47 could be due to the presence of Pd(I) in the sample, as supported by other studies . XPS analysis also confirmed that 1.64 wt% Pd was present on the surface of the polymer matrix.…”

Diamine functionalized gel-type resin as a support for palladium catalysts: Preparation, characterization and catalytic properties in hydrogenation of alkynes

“…336 eV as the Pd-particle size decreased. In consequence, for the Pd-clusters the energy of 336.51 eV was reported [3,6,19]. Thus, treatment with hydrazine 0.5%Pd/FCN sample resulted in the reduction of coordinatively bonded Pd 2+ ions to the Pd-clusters, evidenced also by HRTEM studies (see p. 3.6).…”

“…doi:10.1016/j.reactfunctpolym.2008.09.004 due to the presence of structural units (like-N-, S-, O-heteroatom groups) of polymers. Moreover, polymer network may also exert the influence on the accessibility of reagents to active centers inside the polymer mass [3][4][5]. This latter effect can essentially influence the selectivity of reaction and this effect seems to be especially important in the case of gel-type polymers, exhibiting the ability for swelling in contact with reaction medium.…”

Palladium–Poly(3‐aminoquinoline) Hollow‐Sphere Composite: Application in Sonogashira Coupling Reactions

“…As mentioned earlier, the peak at 337.37 eV is due to the presence of unreacted Pd 2 + whereas the new peak that appeared at 336.47 eV is due to the presence of Pd + in the sample. [41,42] We found that not all Pd 2 + was converted to Pd + and unreacted Pd 2 + species could coordinate with chain 'N' of the polymer. [43] XPS analysis indicates that 1.64 wt % of palladium was present on the surface of the polymer matrix.…”