Perhalophenyl complexes

Bayon, R., Coco, S., Espinet, P., Fernandez-Mayordomo, C. and Martin-Alvarez, J.M. (1997) Liquid-Crystalline Mono- and Dinuclear (Perhalophenyl) gold(l) Isocyanide Complexes. Inorganic Chemistry, 36(11), 2329-2334. 

The related liquid crystalline perhalophenyl complexes [Au(C6F40C ,H2m + i) (CNC6H40(0)CC6H40C H2 +i)] (20) have been reported. The variation in thermal... 

In the course of our research, which focused on the synthesis of pentachloro or pentafluorophenyl-containing Pd or Pt complexes, we developed synthetie procedures for the preparation of square-planar Pt(II) or Pd(II) anionic complexes i.e. palladate or platinate complexes) containing from one to four perhalophenyl groups per metal center. The study of the reactivity of these complexes revealed that because of their anionic nature, they have an excess of electron density around the metal center (probably located on the d orbital) and they can react with Lewis acids giving rise to neutral reaction products. When the Lewis acid is a metal complex or a metal salt, polynuclear derivatives with metal-metal bonds of a donor-acceptor nature are obtained. Most of the work presented in this account has been carried out by reacting the platinate substrates with silver derivatives, which afford polynuclear complexes containing Pt Ag bonds. Our first paper in this field ap-... 

Starting in the mid-1980s, the use of platinum(ll) complexes with two or more perhalophenyl complexes as Lewis bases for the construction of donor-acceptor Pt -Ag bonds has been extensively studied in the groups of Uson and, later, Fomies. This work has been reviewed [26, 42] and is not discussed in detail here. 

Scheme 11 Structural types for polynuclear complexes containing type I donor-acceptor Pt-M bonds from perhalophenyl platinum(II) complexes. R = CeFs, CeCb X = Cl, OH, CgFs...

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