Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 251
... factors was calculated for 1243 reflexions up to sin 0 = 0.362 , and the related three - dimensional Fourier synthesis was summed with phases based on the silver atom alone . The initial R - factor was 0-35 , and the positions of thirty ...
... factors was calculated for 1243 reflexions up to sin 0 = 0.362 , and the related three - dimensional Fourier synthesis was summed with phases based on the silver atom alone . The initial R - factor was 0-35 , and the positions of thirty ...
Page 265
... factors for the exchangeable hydrogens in the reactants and transition state . ( A fractionation factor measures the ... factors for the transition state and re- actants.16 ) Fractionation factors , 4 , for the reactants have been ...
... factors for the exchangeable hydrogens in the reactants and transition state . ( A fractionation factor measures the ... factors for the transition state and re- actants.16 ) Fractionation factors , 4 , for the reactants have been ...
Page 944
... factors , and in all sub- sequent cycles the overall - scale factor was refined . Co- ordinates for the non - methyl hydrogen atoms were deduced from geometrical considerations after cycle 8 , and they were included ( with Uiso 0.05 Å2 ) ...
... factors , and in all sub- sequent cycles the overall - scale factor was refined . Co- ordinates for the non - methyl hydrogen atoms were deduced from geometrical considerations after cycle 8 , and they were included ( with Uiso 0.05 Å2 ) ...
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