Fluorocarbon anion radicals

Nuclei other than hydrogen The point dipolar method to estimate distances is difficult to apply for atoms carrying appreciable spin density. This applies to the centre atom of a radical or a transition metal ion complex, but often also to atoms or ligands other than hydrogen. This is for instance the case for in the fluorocarbon anions discussed in Chapter 5. Theoretically computed values are in these cases often sufficiently accurate to support or reject an assignment. In favourable cases modern DFT or ab initio methods can even be of predictive value to reproduce experimental spectra as exemplified in Chapter 5. 

Initiators -for acrylamide [ACRYLAMIDE POLYMERS] (Vol 1) -anionic initiators [INITIATORS - ANIONIC INITIATORS] (Voll4) -cationic initiators [INITIATORS - CATIONIC INITIATORS] (Vol 14) -in emulsion polymerization [LATEX TECHNOLOGY] (Vol 15) -for fluorocarbon elastomers [ELASTOMERS, SYNTHETIC - FLUOROCARBON ELASTOMERS] (Vol 8) -Free-radical initiators [INITIATORS - FREE-RADICAL INITIATORS] (Voll4) -organohthium compounds as [LITHIUM AND LITHIUM COMPOUNDS] (Vol 15) -peroxides as [PEROXIDES AND PEROXIDE COMPOUNDS - INORGANIC PEROXIDES] (Vol 18) -for propylene oxide [PROPYLENE OXIDE] (Vol 20) -for PUR polyols [POLYETHERS - PROPYLENE OXIDE POLYMERS] (Vol 19) -of suspension polymerization [ACRYLIC ESTER POLYMERS - SURVEY] (Vol 1)... 

That the interaction of the radical cations with nucleophiles has the potential of providing a special derivative chemistry is indicated by the products of P attack found in this work. One specific diene is obtained in quantitative yield in each instance. The thermal degradation of the salts yields the same fluorocarbon products as the F" attack, indicating that the first step of the pyrolysis involves transfer from anion to cation. 

Most of the recent syntheses of new compounds have to do with (1) substances containing — CF3 or other fluorocarbon radicals, (2) substances containing — SF6 radicals, (3) oxyfluorides or salts containing oxyfluoride anions, (4) compounds of S, N, and F. 

Timmons, C.L., and Hess, D.W. Electrochemical cleaning of post-plasma etch fluorocarbon residues using reductive radical anion chemistry. Electrochemical and Solid-State Letters, 7, 302-305, 2004. 

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