Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 264
... activation of Third - order rate constants and activation parameters for the alkaline hydrolysis of cyclic phosphonium salts in 50 % aqueous ethanol Compound k ( 1.2 mole - 2 min . - 1 ) E log A 25.2 ° 35.2 ° 2.84 8.00 ( kcal . per mole ) ...
... activation of Third - order rate constants and activation parameters for the alkaline hydrolysis of cyclic phosphonium salts in 50 % aqueous ethanol Compound k ( 1.2 mole - 2 min . - 1 ) E log A 25.2 ° 35.2 ° 2.84 8.00 ( kcal . per mole ) ...
Page 366
... activation parameters shows that t - butyl nitrate reacts faster than t - butyl chloride owing to a more favourable entropy of activation ( the enthalpies of activ- ation are virtually identical ) , and that it reacts at almost the same ...
... activation parameters shows that t - butyl nitrate reacts faster than t - butyl chloride owing to a more favourable entropy of activation ( the enthalpies of activ- ation are virtually identical ) , and that it reacts at almost the same ...
Page 367
... activation ( AS in e.u. ) , and enthalpies of activation ( AH ‡ in kcal./mole ) for reactions of t - butyl nitrate , chloride , and bromide in various solvents Com- pound Solvent ButONO , MeCN ΔΗ : 25.0 ° Ref . 22.0 This work 105k AS ...
... activation ( AS in e.u. ) , and enthalpies of activation ( AH ‡ in kcal./mole ) for reactions of t - butyl nitrate , chloride , and bromide in various solvents Com- pound Solvent ButONO , MeCN ΔΗ : 25.0 ° Ref . 22.0 This work 105k AS ...
Contents
Physical organic chemistry | 1 |
Aromatic reactivity Part XXXVIII Protodesilylation of 12dihydrobenzocyclobutene indan and tetralin | 12 |
Aromatic reactivity Part XL Additional substituent effects in protodetrimethylsilylation | 21 |
Copyright | |
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absorption acetic acid activation added addition alcohol Amer analysis angles appears aqueous atom base benzene bond bromide calculated carbon carbon tetrachloride Chem chemical chloride compared complex compounds concentration conformation constants containing corresponding coupling derived described determined DISCUSSION effect electron energy equation esters ethanol ether expected experimental experiments factor Figure followed formation formed further gave give given hydrogen hydrolysis increase indicate initial intermediate involving kinetic less measured mechanism method methyl mixing mixture mole molecular molecule nitration observed obtained occurs organic oxidation oxygen peaks peroxide Phys plot position possible prepared present pressure proton radical rate constants ratio reaction reactivity reduced relative reported requires resonance respectively ring salts shifts showed shown similar sodium solution solvent spectra spectrum structure studied substituent suggested Table temperature values yield