Ligand and inorganic

Daugulis [67] reported a palladium-catalyzed C-H arylation of heteroarenes with aryl chlorides. Although a number of methods of direct arylation of five-membered heteroarenes with aryl halides, including less reactive aryl chlorides, had been reported, thus, the direct arylation of N-substituted indoles, pyrroles, and furans with aryl chloride had been elusive except for Ohta s work [5]. Ohta s group succeeded in the C-H arylation of such heteroarenes with aryl chlorides using a combination of Pd(OAc)2, a bulky Buchwald ligand, and inorganic bases (Scheme 17.14). 

Solid extractants made of functional ligands and inorganic supports have attracted much attention because of their mechanical strength, thermal stability, wide range of particle size, and well-dehned pore structure of these materials. In particular, the well-defined pore structure provides a good environment for diffusion of metal ions in the solid matrix. 

In Section 8, the material on solubility constants has been doubled to 550 entries. Sections on proton transfer reactions, including some at various temperatures, formation constants of metal complexes with organic and inorganic ligands, buffer solutions of all types, reference electrodes, indicators, and electrode potentials are retained with some revisions. The material on conductances has been revised and expanded, particularly in the table on limiting equivalent ionic conductances. 

With the help of equiUbrium constants, the extent of adsorption can be predicted as a function of pH and solution variables (7,25,43). Based on this model, the partitioning of metal ions and of ligands (organic and inorganic anions between water and pelagic clays and suspended particles) can be explained. 

Ligands L, L can be drawn from virtually the full range of inorganic and organic neutral and anionic ligands and, indeed, the reaction severely limits the range of donor solvents in which B10H14 can be dissolved. The approximate sequence of stability is ... 

With tripodal tris(diphenylphosphinito)fluoroborate [FB(OPPh2)3] ligands and gold(l) complexes two structurally related, completely inorganic cages 81 and 82 are known (Fig. 22) [118, 119]. 

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