In heterogeneous catalysis, the catalyst is in a different phase from the reactants. name: Bis(dibenzylideneacetone)palladium, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 32005-36-0, name is Bis(dibenzylideneacetone)palladium. In an article，Which mentioned a new discovery about 32005-36-0
A new linear tetraphosphine containing a PNP phosphazane bridge, rac-bis[(diphenylphosphinomethyl)phenylphosphino]phenylamine (rac-dpmppan), was synthesized and utilized to support a series of Pd/Pt mixed metal tetranuclear chains, [Pd4?nPtn(mu-rac-dpmppan)2(XylNC)2](PF6)2 (XylNC=xylyl isocyanide; n=0: Pd4 (1), 1: PtPd3 (2), 2: PtPd2Pt (3), 2: Pt2Pd2 (4), 3: Pt2PdPt (5)), in which the number and positions of additional Pt atoms were successfully controlled depending on the respective synthetic procedures using transformations from 1 to 3 through 2 and from 4 to 5 by redox-coupled exchange reactions. The 31P{1H} NMR and ESI mass spectra and X-ray diffraction analyses revealed almost identical tetranuclear structures, with slight contraction of metal-metal bonds according to incorporation of Pt atoms. The electronic absorption spectra of 1?5 exhibited characteristic bands at 635?510 nm with an energy propensity depending on the number and positions of Pt centres, which were assigned to HOMO (dsigma*sigmasigma*) to LUMO (dsigma*sigma*sigma*) transition by theoretical calculations. The present results demonstrated that the electronic structures of Pd/Pt mixed-metal tetranuclear complexes are finely tuned as orbital-overlapping alloyed metal chains by atomically precise Pt incorporation in the Pd4 chain.
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method