Potassium tetrafluoroargentate

Up to 20 products with different numbers of fluorine atoms and double bonds have been isolated from the fluonnation of benzene with silver difluoride [d], manganese trifluoride [7], potassium tetrafluoroargentate [d], and potassium hexafluoronickelate [24] The composition of the products depends on the fluorinating agents and on the temperature (Table 1)... 

Silver(II) fluoride and potassium tetrafluoroargentate(III) have similar reactivities towards benzene,11 and appear to be slightly less reactive than cobalt(III) fluoride a similar range of products is formed. Potassium hexafluoronickelate(IV) is slightly more reactive than cobalt(III) fluoride under vapor-phase conditions18 (sec above for reactions of K2NiF6 in anhyd HF) the products are similar to those from cobalt(III) fluoride except that more unsaturates are detected, mainly the ones that predominated in the manganese(III) fluoride fluorination. 

Silver(II) fluoride and potassium tetrafluoroargentate(III) are too powerful as fluorinating agents for tetrahydrofuran and no oxygen-containing products are detected."... 

Potassium tetrafluoroargentate(III) was first described by Hoppe in 1957 [17]. It was synthesized by fluorination of mixtures of binary nitrates or halides. Hoppe and Homann [18] established from powder data that the interatomic distance in the square anion AgF4 is 1.90 A. At approximately the same time Edwards et al. [19] also reported a preparation of KAgF4 and their unit cell (also from the powder data), was in good agreement with that of Hoppe and Homann. 

Oxidation of a mixture of potassium and silver(I) halides with fluorine in alkaline solution produces yellow potassium tetrafluoroargentate, KAgp4, which is very sensitive to moisture. The corresponding yellow sodium and cesium salts are also known. All contain the diamagnetic square-planar [Agp4] ion. There are mixed-metal salts such as KCs2Agp6, which contains the octahedral [AgP ] " ion. Pluorination of a mixture of CsCl and AgCl under pressure yields a complex salt of tetravalent silver Cs2[Ag p6]. 

Althou silver(n) fluoride and potassium tetrafluoroargentate(in) (KAgF4) are slightly less active fluorinating agents than cobalt(in) fluoride, the reaction of either silver compound with benzene at 300—380 °C gives mainly dodecafluoro-cyclohexane (see also p. 6). A similar result is obtained from the complex fluoride at 120°C, but at this temperature silver(n) fluoride itself affords significant... 

Write the structural formula corresponding to each of the following lUPAC names a. hexaaquairon(II) chloride b. potassium tetrafluoroargentate(III) c. pentachlorotitanate(II) ion. 

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