In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Safety of (2,2′-Bipyridine)dichloropalladium(II), At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 14871-92-2, name is (2,2′-Bipyridine)dichloropalladium(II). In an article，Which mentioned a new discovery about 14871-92-2
Structural features of palladium(II) complexes with alpha- hydroxycarboxylate and aromatic alpha,alpha?-diimine ligands
The neutral alpha-hydroxycarboxylate complexes [Pd(bpy)(GLYO)] ·3H2O (1), [Pd(bpy)(MANO)]·4H2O (2) and [Pd(GLYO)(phen)]·5H2O (3), together with the palladium(II) complexes [Pd(phen)2](NO3)2 (4) and [Pd(CH 2COCH3)(bpy)(Cl)] (5) (where GLYO and MANO are the glycolate and mandelate dianions, respectively, and bpy and phen, 2,2?-bipyridine and 1,10-phenantrholine, respectively), have been prepared by reaction of [Pd(bpy)Cl2] or [PdI2(phen)] with salts of alpha-hydroxycarboxylic acids in water. These compounds were characterized by elemental analysis, mass spectrometry, 1H and 13C NMR, UV-Vis, IR spectroscopy, TG analysis and single crystal X-ray diffraction. The aforementioned studies confirmed the formation of a variety of square-planar mononuclear compounds (1-3) where the alpha,alpha?-diimine ligands exhibit a rather simple bidentate chelating role and the alpha- hydroxycarboxylate ligands are dianionic. A variety of ligand distortions, hydrogen-bonding and stacking interactions were found and these were thoroughly analyzed. In compounds 1 and 3, the complex molecules are stacked in such a way that the coordination planes are parallel to one another. The Pd?Pd distances between the nearest stacked neighbors are 3.8043(6) and 3.302(2)/3.475(1) A?, respectively. Compounds 1-3 have been tested in vitro for cytotoxicity on HeLa-299 human tumor cell lines.
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Reference：
Chapter 1 An introduction to palladium catalysis,
Palladium/carbon catalyst regeneration and mechanical application method