Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 59
... activation energy as the reaction be- comes more exothermic , since the saddle point S will get closer to R if T moves down . ( b ) In general , activation energies will be lowered by weakening the weakest bond either in the reactants ...
... activation energy as the reaction be- comes more exothermic , since the saddle point S will get closer to R if T moves down . ( b ) In general , activation energies will be lowered by weakening the weakest bond either in the reactants ...
Page 61
... activation energies for exothermic reactions . Quantitative data on such systems are sparse , but as a qualitative example , trialkylsilanes are brominated rapidly by molecular bromine in inert solvents at room temperature , 11 as in ...
... activation energies for exothermic reactions . Quantitative data on such systems are sparse , but as a qualitative example , trialkylsilanes are brominated rapidly by molecular bromine in inert solvents at room temperature , 11 as in ...
Page 954
... activation for the isomerization of bicyclo [ 3,2,0 ] hept - 1 ( 5 ) -ene determined in the present work ( 31.56 kcal . mole - 1 ) is 14 kcal . mole - 1 less than that for bicyclo [ 3,2,0 ] hept - 6 - ene . The differences between the ...
... activation for the isomerization of bicyclo [ 3,2,0 ] hept - 1 ( 5 ) -ene determined in the present work ( 31.56 kcal . mole - 1 ) is 14 kcal . mole - 1 less than that for bicyclo [ 3,2,0 ] hept - 6 - ene . The differences between the ...
Contents
Physical organic chemistry | 1 |
Topochemistry Part XXX Crystal and molecular structures of chalcone | 11 |
Conformational studies Part I Crystal and molecular structures of cis12dipchlorobenzoyl and cis | 17 |
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A. R. Katritzky alcohol alkyl Amer anion aqueous aromatic ation axial benzene bond bromination calculated carbanion carbon acids carbon atom carbon tetrachloride carbonyl catalyst Chem chemical shifts Chemistry chloride complex compounds concentration conformation correlation coupling constants crystal cyclohexane derivatives difference dilute dimethyl sulphoxide dioxan electron elimination energy equation equatorial equilibrium ester ethanol ether experimental Figure fluorene formation fraction H₂O H₂SO hydrogen hydrolysis hydroxide indicators interaction intermediate ionisation isomer isomerization isotope effect k₁ k₂ kcal kcal./mole kinetic measured mechanism methyl mixture mole mole-¹ molecular molecule n.m.r. spectra nitration nitrogen nucleophilic observed obtained oxide oxime oxygen parameters phenyl Phys piperidine plot proton pyridines R. P. Bell radical rate constants ratio reaction reactivity ring shown shows sodium solution solvent spectrum structure substituents sulphuric acid t-butyl Table temperature Tetrahedron thiophen transition values