Quarterly Journal of the Chemical Society of London, Part 5, Pages 5005-6079 |
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Page 5246
... increases the relative energy of activation owing to repulsive interactions between the substituent and the reaction centre , and an increase in the internal repulsive interactions . Further the entropy of activation will be decreased ...
... increases the relative energy of activation owing to repulsive interactions between the substituent and the reaction centre , and an increase in the internal repulsive interactions . Further the entropy of activation will be decreased ...
Page 5576
... increase the s - character of this bond ( cf. Coulson 7 ) , and hence the 13C - H coupling constant will also increase . Secondly , the C - H bond may lengthen . This would be expected to oppose the increase in s - character caused by ...
... increase the s - character of this bond ( cf. Coulson 7 ) , and hence the 13C - H coupling constant will also increase . Secondly , the C - H bond may lengthen . This would be expected to oppose the increase in s - character caused by ...
Page 5589
... increase in a from 0-25 to 0-45 with increasing time of pre - irradiation . The increase in a suggests that irradiation gradually neutralised the effect of the previous ageing , and that at the same time ( since the time required for a ...
... increase in a from 0-25 to 0-45 with increasing time of pre - irradiation . The increase in a suggests that irradiation gradually neutralised the effect of the previous ageing , and that at the same time ( since the time required for a ...
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absorption acetic acid acetic anhydride acetone added alcohol alkaline alumina Amax Amer anhydride anion aromatic atoms bands benzene benzyl boiling bond bromide Calc carbonate carboxylic Chem chloride chloroform chromatography cm.¹ complexes compound concentration constants crystallised crystals decomp decomposition derivative dilute dioxan distilled dried electron Elution ester ethanol ethyl acetate ethylene evaporated extracted filtered formed Found fraction gave H₂O heated hydration hydrochloric acid hydrogen hydrolysis infrared infrared spectrum iodide iodine iodine pentafluoride isomer isomeric ketone light petroleum lithium aluminium hydride m. p. and mixed methyl ether mixed m. p. mixture mole molecule needles nitrate nitric oxide nitrogen observed obtained ozonolysis peroxide phenyl potassium prepared proton pyridine radicals reaction reflux requires residue resonance room temperature salt sodium hydroxide sodium methoxide solid solution solvent spectra structure substituent sulphate Table ultraviolet values Vmax washed yield