Journal of the Chemical Society, Part 1The Society., 1947 |
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Page 142
... structure with the observations . A number of small variations of the structure have been calculated , and some of these show improved agreements . It is concluded that the balance of the evidence is still in favour of a model with a ...
... structure with the observations . A number of small variations of the structure have been calculated , and some of these show improved agreements . It is concluded that the balance of the evidence is still in favour of a model with a ...
Page 147
... structure factors . The greatest uncertainties in these calculations probably lie in the values adopted for the atomic ( f ) scattering curves . For the present purpose of comparing slightly differing structures we have adopted a purely ...
... structure factors . The greatest uncertainties in these calculations probably lie in the values adopted for the atomic ( f ) scattering curves . For the present purpose of comparing slightly differing structures we have adopted a purely ...
Page 839
... structure determination are masked by an unknown number of fortuitous maxima . Following this lengthy attempt to utilise the Patterson - Harker syntheses , attention was focused on the projection of the structure on to the c - plane ...
... structure determination are masked by an unknown number of fortuitous maxima . Following this lengthy attempt to utilise the Patterson - Harker syntheses , attention was focused on the projection of the structure on to the c - plane ...
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Common terms and phrases
acetic anhydride acetone acetyl added alkaline Amer amidine amine ammonia ammonium aqueous sodium atoms benzene boiling bromide Calc CH₂ charcoal Chem chloroform colourless needles compound concentrated hydrochloric acid condensation cooled crystallised crystallised from alcohol crystals cyanide decomp derivative diazotised dilute dissolved distilled dried ester ethyl acetate experimental extracted with ether filtered filtrate formed Found fraction gave give m. p. H₂O heated hydrochloric acid hydrogen chloride hydrolysis iodide isolated light petroleum m. p. and mixed methanol Methiodide method methyl alcohol minutes mixed m. p. molecular molecule nitration nitric acid obtained oxidation pale yellow petroleum b. p. phenyl picrate polymer polymerisation potassium precipitate prepared prisms pyridine reduced pressure refluxed removed requires residue room temperature salt separated sodium carbonate sodium hydroxide solid soluble solvent stirred structure substance sulphate sulphide sulphone sulphuric acid washed yellow needles yield