Light fluorous compound

Second, for fluorous compounds with lower fluorine contents (less than 21 fluorines or F% < 60%, light fluorous compounds), fluorous liquid-phase extraction is no longer effective. Fluorous solid-phase extraction selectively retains the fluorous components in the fluorous absorbent but does not retain the non-fluorinated... 

CH2)mRfn and serve a like dissolves like function. When such phase labels are present in sufficient length or quantity, the fluorous phase affinity (fluorophilicity) of the compound can be extremely high. This characteristic is used in the design of dyes that adhere strongly to Teflon. Molecules that have large numbers of such fluorine atoms - typically from 39 to > 100 - are called heavy fluorous compounds. However, for certain applications moderate fluorous phase affinities suffice, and for the compounds used in such applications, the term light fluorous is sometimes utilized (Table 3.1). 

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