Quarterly Journal of the Chemical Society of London, Volume 1 |
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Page 34
... factor and Fourier calculations revealed the positions of all the atoms other than hydrogen . The R - factor , R = Σ || Fobs | Fobs Fcale / Fobs , was 0-26 = - when these fifteen atoms were included in a structure factor calculation ...
... factor and Fourier calculations revealed the positions of all the atoms other than hydrogen . The R - factor , R = Σ || Fobs | Fobs Fcale / Fobs , was 0-26 = - when these fifteen atoms were included in a structure factor calculation ...
Page 163
... factor calculations ( R = 0-51 ) as the remainder were close to pseudo mirror planes and we were unsure of their precise y co - ordinates . In two further rounds of electron - density and structure - factor calculation all the atomic ...
... factor calculations ( R = 0-51 ) as the remainder were close to pseudo mirror planes and we were unsure of their precise y co - ordinates . In two further rounds of electron - density and structure - factor calculation all the atomic ...
Page 443
... factor in these spectra , being abundant in several cases . но + OH R OMe R OMe m / e 74 ( h ) M + ( e ) + There is a substituent effect on the intensity of this ion and the aromatic electron - withdrawing substituents strongly enhance ...
... factor in these spectra , being abundant in several cases . но + OH R OMe R OMe m / e 74 ( h ) M + ( e ) + There is a substituent effect on the intensity of this ion and the aromatic electron - withdrawing substituents strongly enhance ...
Contents
Physical organic chemistry | 1 |
Aromatic reactivity Part XXXVIII Protodesilylation of 12dihydrobenzocyclobutene indan and tetralin | 12 |
Aromatic reactivity Part XL Additional substituent effects in protodetrimethylsilylation | 21 |
Copyright | |
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absorption acetic acid Acta alcohol alkyl Amer amine angles anion aqueous aromatic ation benzene bond bromide calculated carbanion carbon tetrachloride CH₂ Chem chemical shifts Chemistry Chim chloride CO₂H compounds concentration conformation corresponding coupling constants decomposition derived di-imine dioxan dipole effect electron equation esters ethanol ether experimental Figure first-order formation formed H₂O hydrogen hydrolysis hydroxide hypochlorous acid interaction intermediate iodide irradiation isomer isomerisation isopropyl k₁ ketone kinetic measured mercuric mesitylene method methyl mixture mole mole-¹ molecular molecule n.m.r. spectra nitration nitrogen observed obtained olefin oxidation oxygen peaks peroxide phenyl Phys plot polymer proton radical rate constants ratio reactants reaction reactivity reduced relative resonance ring salts showed shown similar singlet sodium sodium hydroxide solution solvent solvolysis spectrum steric steric effect structure substituent sulphoxide t-butyl Table temperature titanium(III triethyl phosphite values