Bond strengths in Vinyl, Allyl, and Ethynyl Peroxy Radicals

4 Bond strengths in Vinyl, Allyl, and Ethynyl Peroxy Radicals 

Jonsson [90] reports values between 13.4 and 23.4 kcal mol for C=CC—00 . Our value is 18.52 kcal mol and the estimated value of Benson is 18.2 + 0.5 kcal mol [20]. Knyazev and Slagle [14 ] have found 18.42 kcal mol  

The C=CCO—O value is 62.4 kcal mol, which is similar to values of the alkyl-peroxy 

The Bond energies for C C—00 and CC=C—00 are higher than those for vinyl and alkyl systems rely from 49 to 57 kcal mol. Bond strengths between C=C—00 and CC=C—00 show a difference of 9 kcal mol, from 48.9 to 57.8 kcal mol with an additional carbon on the non-hydroperoxide sp carbon. 

The O—O bond energies in C=CO—0 and CC CO—O are weak at about 16 kcal mol, similar to the weak bonds (ca. 7 kcal moT ) in the ethynyl hydroperoxides. The O—O bond energies in C=CO—O and CC=CO—0 show a slight increase from 15.8 to 17.9 kcal mol with an additional carbon on the non hydroperoxide sp carbon. 

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