32005-36-0, Name is Bis(dibenzylideneacetone)palladium, belongs to catalyst-palladium compound, is a common compound. Quality Control of Bis(dibenzylideneacetone)palladiumIn an article, once mentioned the new application about 32005-36-0.
The coordination chemistry of the new bidentate nitrogen ligands 8-(2-pyridyl)quinoline (8-PQ) and 8-(6-methyl-2-pyridyl)quinoline) (Me-8-PQ) towards palladium and platinum has been studied. Several (N?N)Pd(R)Cl and (N?N)Pd(alkene) complexes have been synthesised. The complex (8-PQ)Pd(Me)Cl has been characterised by a single crystal X-ray determination (crystal data: triclinic space group P 1 with a=8.513(5), b=9.338(4), c=10.219(2) A, alpha=108.11(2), beta=89.82(3), gamma=116.81(4), V=680.1(6) A3, R=0.033, Z=2). A fast CO insertion occurs into the palladium-carbon bond of the complexes (N?N)Pd(Me)Cl providing the (N?N)Pd(C(O)Me)Cl complexes. For (8-PQ)Pd(C(O)Me)Cl an X-ray structure determination has been carried out (crystal data: monoclinic space group P21/c with a=9.084(4), b=10.179(3), c=16.400(3) A, beta=95.59(2), V=1509.2(9) A3, R=0.043, Z=4). Unexpected in both molecular structures is the large dihedral angle between the plane of the bidentate nitrogen ligand and the coordination plane of the palladium. Both bidentate coordinating ligands 8-PQ and Me-8-PQ show a relatively large bite angle. A monodentate coordination mode has been observed for the complexes (N?N)M(PEt3)Cl2 (M=Pd, Pt), as the pyridyl group of the ligand is coordinated to the metal while the quinoline group is dissociated from the metal, which is shown in the X-ray structure determination for the complex (8-PQ)Pd(PEt3)Cl2 (crystal data: monoclinic space group P21/a with a=15.736(2), b=7.782(1), c=18.255(3) A, beta=102.98(1), V=2178.3(6) A3, R=0.062, Z=4).
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method