Silver chemistry

Constmction of multilayers requires that the monolayer surface be modified to a hydroxylated one. Such surfaces can be prepared by a chemical reaction and the conversion of a nonpolar terminal group to a hydroxyl group. Examples of such reactions are the LiAlH reduction of a surface ester group (165), the hydroboration—oxidation of a terminal vinyl group (127,163), and the conversion of a surface bromide using silver chemistry (200). Once a subsequent monolayer is adsorbed on the "activated" monolayer, multilayer films may be built by repetition of this process (Fig. 8). 

C. (2001) l,l -Bis(2-pyridylthio)ferrocene a new ligand in gold and silver chemistry. 

Biological and medicinal aspects of silver chemistry are covered in Chapter 62 but a number of features will be outlined here. Silver salts are powerful bacteriocides and it has been known for many years that storing water in silver vessels prevents spoilage. Silver nitrate is highly corrosive and can be applied locally to remove warts or cauterize wounds. In many states in the USA, a 1% AgN03 solution is dropped into the eyes of newborn infants to prevent ophthalmia neonatorum. Silver sulfadiazine has been found effective as a topical application to prevent infections in serious bums victims. 

One area of silver chemistry that has received much recent attention is the synthesis of multinuclear aggregates.315 Anionic metal dithiolato complexes such as K M(S2C202)2 were found to form adducts with silver(I) phosphines. In these complexes, the inert cations (K+) that accompanied the metallothio anions could be readily substituted by coordinatively unsaturated silver phosphines Ag(PR3)2. For dithiooxalto complexes this led to the isolation of a remarkable range of linkage isomers (34)-(37) 316,317... 

Although silver chemistry has a long history in organic chemistry, it has typically been used in stoichiometric amounts and is developed mostly for anion metathesis... 

A selection of the literature is also necessary in order to give the reader an overview of silver chemistry in the field of cycloisomerization reactions. Therefore, this chapter is not intended to be an exhaustive review of the literature, since more recent specialized reviews can be accessed for that purpose.3-10,26... 

Wiley, B., Sun, Y., Mayers, B. and Xia, Y. (2005) Shape-controlled synthesis of metal nanostructures the case of silver. Chemistry-A European Journal, 11, 454-53. 

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