In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Computed Properties of C34H28O2Pd, 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
The formation of a bisMETAMORPhos PN-bridged dimeric PdI complex (3) from ligand 1 and Pd(dba)2 is described. The addition of 1 to Pd(dba)2 initially leads to the formation of Pd0 complex 2, which has a highly distorted tetrahedral environment and binds two neutral ligands 1. Complex 2 converts to {PdI}2 complex 3 upon heating. Complex 3 consists of a completely flat Pd-Pd core, with a Pd-Pd bond length of 2.6199(4) A, and the Pd centers display a highly distorted square planar coordination environment. The formation of complex 3 from 2 is suggested to proceed via an in situ comproportionation pathway. Initial decoordination of one ligand from 2 followed by oxidative addition of one neutral coordinated ligand arm leads to a 1-PdIIH complex. Insertion of free dba into the Pd-H bond generates a 1-PdIIdba complex that releases 1,5-diphenylpent-1-en-3-one via intra- or intermolecular protonolysis. Concomitantly, comproportionation with 1-Pd0 yields 3. Complex 3 was found to function as a precatalyst in the Suzuki-Miyaura cross-coupling of p-chloroacetophenone with good conversions.
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method