Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 45
... kcal . mole - 1 . The structure factors may be related to barriers to internal rotation . Heats of formation and resonance energies of some free radicals are also derived . = ID ( C , p3¬C1p3 ) = c ;. of thiophen and selenophen in the ...
... kcal . mole - 1 . The structure factors may be related to barriers to internal rotation . Heats of formation and resonance energies of some free radicals are also derived . = ID ( C , p3¬C1p3 ) = c ;. of thiophen and selenophen in the ...
Page 46
... kcal . mole - 1 CH1o - CH3 + H • ; AH ° = a kcal . mole - 1 o - CH2'C1p + 3H • ; AH ° = 3a kcal . mole - 1 C1p C1p1 ; AH ° = e kcal . mole - 1 1054 kcal . mole1 . b can also be improved by use of reaction ( 23 ) , as b = 78 + as c 3971 ...
... kcal . mole - 1 CH1o - CH3 + H • ; AH ° = a kcal . mole - 1 o - CH2'C1p + 3H • ; AH ° = 3a kcal . mole - 1 C1p C1p1 ; AH ° = e kcal . mole - 1 1054 kcal . mole1 . b can also be improved by use of reaction ( 23 ) , as b = 78 + as c 3971 ...
Page 134
... mole fraction of ( IIA ) ; i.e. , it indicates that the axial NH position is favoured by 0.34 ± 0.05 kcal./mole . ( Throughout this paper , errors in AG ° have been calcu- lated by using the standard deviations in the measured dipole ...
... mole fraction of ( IIA ) ; i.e. , it indicates that the axial NH position is favoured by 0.34 ± 0.05 kcal./mole . ( Throughout this paper , errors in AG ° have been calcu- lated by using the standard deviations in the measured dipole ...
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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4-nitroaniline A. R. Katritzky acetic acid activation energy alcohol Amer amine anion aqueous aromatic aryl-methyl ation axial benzene bond bond dissociation energies bromination calculated carbanion carbon acids catalyst Chem chemical shifts Chemistry chloride compounds concentration conformation corresponding coupling constants crystal cyclohexane derivatives deviations dilute dimethyl sulphoxide dipole electron equation ether ethylene experimental Figure fluorene formation fraction H₂O hydrocarbons hydroxide increase indicators interactions intermediate ionisation isomer isomerization isotope effect k₁ k₂ kcal kcal./mole kinetic Mc./sec measured mechanism methanol methyl mixture mole mole-¹ molecular molecules n.m.r. spectra nitrogen nucleophilic observed obtained oxide oxygen parameters phenyl Phys piperidine proton pyridines R. P. Bell radical rate constants ratio reaction relative ring selenophen shown shows signal sodium solution solvent spectrum structure substituted t-butyl Table temperature Tetrahedron thiophen transition tri-o-thymotide triethylamine triphenylmethane wave