Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 136
... electron pairs and / or polar bonds . In disagreement with current chemical intuition , structures which contain the maximum number of gauche - inter- actions between lone electron pairs or polar bonds represent energy minima and ...
... electron pairs and / or polar bonds . In disagreement with current chemical intuition , structures which contain the maximum number of gauche - inter- actions between lone electron pairs or polar bonds represent energy minima and ...
Page 142
... electron pairs or electron pairs adjacent to a polar bond : for hydrazine there are two , and for the other three compounds there is only one barrier associated with the attractive and repulsive components . The rotational behaviour of ...
... electron pairs or electron pairs adjacent to a polar bond : for hydrazine there are two , and for the other three compounds there is only one barrier associated with the attractive and repulsive components . The rotational behaviour of ...
Page 144
... electron pairs . The physical significance of this is that the origin of the barrier can be understood principally in terms of interactions of the bonded electron pairs . The non - bonded electron pairs , until now considered to be ...
... electron pairs . The physical significance of this is that the origin of the barrier can be understood principally in terms of interactions of the bonded electron pairs . The non - bonded electron pairs , until now considered to be ...
Contents
Physical organic chemistry | 1 |
Contents | 6 |
Kinetics and mechanism of electrophilic substitution of heteroaromatic compounds Part XXIV Acid | 11 |
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A2 mechanism acetic acid-catalysed addition alcohol alkaline hydrolysis Amer analysis anion aqueous aromatic benzene benzoate bond bromine cal mol-1 calculated carbon atom carbonium ion carbonyl catalysis Chem Chemistry chlorine compounds concentration conjugate conjugate acid correlation deuterium diastereomers dienamines dioxan electron pairs energy entropies of activation epoxide equation esters ether ethylene exchange experimental Figure formation glycol H₂O hydrogen hydroxide hypochlorous acid indicate intramolecular isomer isotope effects k₁ k₂ ketone kinetic MeOH methanol methanolysis methiodide method methyl mixture mmHg mol-¹ molecular molecule n-pentyl n.m.r. spectra nitration nucleophilic observed obtained olefin oxidation oxygen p-xylene parameters perchloric acid Phys polar positive proton R. J. W. Le Fèvre radical rate coefficients rate constants ratio reaction constant reactivity relative resorcinol ring sodium solution solvent steric steric effects structure studied substituent substituted substrate t-butyl Table temperature Tetrahedron thiophen trans triethylborane values