Fluorine reaction with noble gases

Fluorofullerenes have been prepared by reaction with halogen fluorides, by direct fluorination with F2 or by fluorination with noble gas fluorides [7,8,14], The reaction with high valence metal fluorides is the most versatile route for the synthesis of CsoFnH. 

O O In the early 1960s, Neil Bartlett, at the University of British Columbia, was the first person to synthesize compounds of the noble gas xenon. A number of noble gas compounds (such as XeF2, XeF4, XeFe, and XeOs) have since been synthesized. Consider the reaction of xenon difluoride with fluorine gas to produce xenon tetrafluoride. 

In 1962, Neil Bartlett produced a reaction of xenon, the first reported reaction of any noble gas. Later it was found that fluorine reacts directly with xenon to give one of three xenon fluorides, depending on temperature and pressure. Because all the products and the reactants are colorless, the easiest way to tell that a reaction is occurring is the drop in the total pressure of the system as the number of moles of gas decreases. For example,... 

Since lithium need lose only one electron and fluorine gain one electron to achieve noble gas configuration, the atoms react in a 1 1 ratio. After the reaction, both ions have the stable noble gas configuration, the fluoride ion with a completed octet, and lithium with the helium duet, the stable filled shell of the first period. 

Apart from these, a number of reactions, e.g. ozonation [150], hydrogenation [151], fluorination [152], and the formation of methylene adducts by reaction with THF [153], have led to various mixtures of higher fullerene derivatives. Finally, as the methods for production and purification of endohedral fullerene derivatives are being improved, the exohedral functionalization of Qq [70, 73, 74] and C70 [73] cages containing noble gas atoms, and of endohedral metallo-fullerenes [64,154] emerge as new fields of fullerene chemistry. 

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