Solutions_Manual_for_Organic_Chemistry_6th_Ed 85

Solutions_Manual_for_Organic_Chemistry_6th_Ed 85 - 4-55...

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Unformatted text preview: 4-55 Mechanism 1 : (a) CI ° + 3 ¡¢CIO ¡ + (b) 2 CIo ° -¡CI £ O ¤ O¥Cl Hv (c) CI ¦ o § o ¤ Cl ¡¢02 + 2 CI ¨Mechanism ©ª (d) 03 02 + ° (e) CI ° + 03 -¡CIO ¡ + 02 (f) CIo ° + ° -¡02 + Cl « The biggest pr¬blem in Mechanism 1 Lies ­n step (b). ThE c¬ncen®rati¬n ¬F CI at¬ms ­s Very small, s¬ a® any gi¯En ®imE, ®h° c¬nc°ntrati¬n ¬± CIO wil l b° ¯ErY sma²² ³ ThE pr¬babi ²ity ¬F ®w¬ CIO radicals Finding eacH ¬®her t¬ ±¬R CIooCI i s ¯i´ua²²y zer¬µ ¶¯en th¬ugh ®His ·echani sm sh¬ws a cataly®ic cycle with Cl« (starting the mechanism and being regenera®ed at the end)¸ ®he middle stEp makes i® highly Unlikely. Step (d) is the " light" react­¬n that ¬ccurs naturally in daY²igh®³ A® night¸ ®he reac®i¬n reVers°s and regEnera®es ¬z¬nE. StEp (F) is the cr¹ciºl st°p³ A ²¬w c¬ncentrati¬n ¬± CIo will Find a relati¯elY high c¬ncentrat­¬n ¬F ° at¬ms because ®he "ligh®" reacti¬n i s pr¬ducing ¡ at¬ms in...
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This note was uploaded on 02/27/2010 for the course CHEM 140 taught by Professor Wade during the Spring '10 term at Whitman.

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