Coordination chemistry palladium

A review15 with 90 references covers the coordination chemistry of palladium(OTO— -4) reported in 1992. 

A review17 with 25 references of five-coordination in palladium(II) and platinum(II) chemistry is presented. The complexes have invariably a trigonal bipyramidal geometry with the bidentate ligand and the alkene in the equatorial plane. 

A review24 with 15 references discusses the theoretical aspects of the coordination chemistry of palladium and platinum in relationship with their biological activity. 

A review29 with 59 references of the inorganic and coordination chemistry of palladium is presented. 

This volume is concerned with fundamental developments in the coordination chemistry of the elements of Groups 9-12 since 1982. The individual chapters cover the coordination chemistry of cobalt, iridium, nickel, palladium, platinum, copper, silver and gold, zinc and cadmium, and mercury. Unfortunately, because of factors beyond the Editors control, the manuscript for the proposed chapter on rhodium was not available in time for publication. 

The first examples of the use of palladium as a catalyst for carbon-carbon coupling reactions were reported almost thirty years ago [14], and over recent decades a massive effort has been devoted to the extension of the scope of palladium-catalyzed reactions. Organic and organometallic chemists have received extensive input from palladium-coordination chemistry in the task of understanding the mechanisms behind these efficient synthetic procedures [14]. 

Herrmann WA, Brossmer C, Reisinger CP, Riermaier T, Ofele K, Beller M (1997) Coordination chemistry and mechanisms of metal-catalyzed C-C coupling reactions. Part 10. Palladacycles efficient new catalysts for the Heck vinylation of aryl halides. Chem Eur J 3 1357-1364 Iyer S, Jayanthi A (2001) Acetylferrocenyloxime palladacycle-catalyzed Heck reactions. Tetrahedron Lett 42 7877-7878 Iyer S, Ramesh C (2000) Aryl-Pd covalently bonded palladacycles, novel amino and oxime catalysts di- x-chlorobis(benzaldehydeoxime-6-C,AT)dipalla-dium(II), di- x-chlorobis(dimethylbenzylamine-6-C,A)dipalladium(II) for the Heck reaction. Tetrahedron Lett 41 8981-8984 Jeffery T (1984) Palladium-catalysed vinylation of organic halides under solid-liquid phase transfer conditions. J Chem Soc Chem Commun 1287-1289 (b) idem,... 

We have compiled important preparations of heteroaryl halides, boranes and stannanes for each heterocycle. The large body of data regarding palladium-mediated polymerization of heterocycles in material chemistry is not focused here neither is coordination chemistry involving palladium and heterocycles. 

From a coordination chemistry point of view, it is noteworthy that thianthrene has been used as a ligand for transition metals such as silver, palladium, platinum, and mercury <1986JCM2801, 19981CA145>. 

Hierso JC, Feiu er R, et al (1998) Platinum, palladium andrhodium complexes as volatile precimsors for depositing materials. Coordination Chemistry Reviews 180, 1811-1834... 

Because of factors beyond the editors control, the submission of manuscripts for this chapter was delayed. In order to minimize any delay in publishing Comprehensive Coordination Chemistry as a whole, the coverage of palladium appears at the end of this volume, commencing on page 1099. 

Four comprehensive sources are available for platinum chemistry, three of which are written in the English language. The companion volume Comprehensive Organometallic Chemistry has a chapter devoted to platinum, and three books are of primary importance to readers with an interest in the coordination chemistry of platinum. The books by Belluco5 and Muraveiskaya6 are restricted to the organometallic and coordination chemistry of platinum, and Hartley s book is entitled, The Chemistry of Platinum and Palladium .7 It is assumed that readers will use these sources in conjunction with this chapter. For earlier literature this... 

This section of the coverage of palladium(II) coordination chemistry will concentrate on complexes of the more common, usually unidentate ligands containing sulfur, selenium or tellurium donor atoms coverage of the vast number of chelate complexes of bi- or multi-dentate ligands will be limited but the reader will find references to most classes of palladium(II) chelate complexes and these will provide an entry into the literature. 

The coordination chemistry of optically pure, chiral phosphetanes has been studied with special attention to the preparation and characterization of complexes since they are suitable for asymmetric catalytic reactions. The optically active P-menthylphosphetanes showed similar reactivities with usual trivalent phosphines to afford stable palladium(n) and ruthenium complexes, under usual reaction conditions. Similarly, the Pd-allyl complex 28 <1997JOM(529)465> has been prepared from [(allyl)PdCl]2 and was characterized by X-ray crystallography. Reaction of the P(R),C(3 )-2-benzyl-3,3,4,4-tetramethyl-l-menthylphosphetane 64 with Ru3(C0)12/HC02H proceeds normally to give the formato bridged dimer 65 (Figure 11) <1998S1539>. 

The coordination of catenated nitrogen ligands to transition metals also dates back to the early work of Griess 89, 90), which included references to copper and silver derivatives of 1,3-diphenyltriazene. Around the turn of the century Meldola and Streatfeild 146-148), Meunier 150-152), Niemen-towski and Roszkowski 159), Cuisa and Pestalozza 55,56), and others reported extensively on triazene complexes of copper, silver, and mercury, and in the late 1930s and early 1940s Dwyer and colleagues 69-74) extended this work to include derivatives of nickel and palladium. However, most work on the coordination chemistry of triazenes and other catenated... 

Palladium(II) complexes are somewhat less stable in both the thermodynamic and the kinetic sense than their Pt analogues, but otherwise the complexes are usually similar. The kinetic inertness of the Pt11 (and also PtIV) complexes has allowed them to play an important role in the development of coordination chemistry such as studies of geometrical isomerism and reaction mechanisms. 

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