Quarterly Journal of the Chemical Society of London |
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Page 96
... absorption data for compounds of this type have been collected by Woodward FIG . 2 . Absorption spectra in alcohol . 4.5 4.0 log , ε . 3-5 H II III II III I 3.0 2250 2500 2750 3000 3200 λ , A . I , Umbellulone . II , Umbellulone ...
... absorption data for compounds of this type have been collected by Woodward FIG . 2 . Absorption spectra in alcohol . 4.5 4.0 log , ε . 3-5 H II III II III I 3.0 2250 2500 2750 3000 3200 λ , A . I , Umbellulone . II , Umbellulone ...
Page 498
Chemical Society (Great Britain). 128 . Studies in Light Absorption . Part II . 2 : 4 - Dinitrophenylhydrazones . By ERNEST A. BRAUDE and E. R. H. JONES . The visible and the ultra - violet light absorption properties of some fifty ...
Chemical Society (Great Britain). 128 . Studies in Light Absorption . Part II . 2 : 4 - Dinitrophenylhydrazones . By ERNEST A. BRAUDE and E. R. H. JONES . The visible and the ultra - violet light absorption properties of some fifty ...
Page 507
... absorption curve for the triphenylmethyl cation , is very similar to the absorption by this cation in solution in sulphuric acid , perchloric acid , or methyl sulphate . In sulphur dioxide solution the frequencies of maximum absorption ...
... absorption curve for the triphenylmethyl cation , is very similar to the absorption by this cation in solution in sulphuric acid , perchloric acid , or methyl sulphate . In sulphur dioxide solution the frequencies of maximum absorption ...
Contents
An Investigation of the Occurrence of the Coordinate or Dative Link by Electric Dipolemoment | 38 |
Electrolytic Dissociation Processes Part IV The Ionisation of a CarbonHalogen Bond | 129 |
By J SHERIDAN | 133 |
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4-benzthiazine absorption acetic anhydride acetone acetyl acetylene added addition adsorbed alkali Amer ammonia aqueous atoms benzene boiling bond Calc carbinol carbon catalyst CH₂ Chem chloroform colourless needles compound concentrated condensation cooling crystallised from alcohol crystals cyclisation D.Sc decomp derivative described dilute dissolved distilled dried ester ethanol ether ethylene evaporated EXPERIMENTAL extracted filtered filtrate formation formed Found fraction gave give heated hydrocarbons hydrochloric acid hydrogen bromide hydrogen chloride hydrolysis iodide isolated ketone light petroleum liquid methiodide method methyl alcohol mixed m. p. mixture molecule nickel nitric nitrogen obtained optically oxide oxychloride phosphate phosphorus picrate potassium potassium hydroxide precipitate prepared pressure prisms pyridine reaction reduced refluxed requires residue ring room temperature salt saturated separated sodium carbonate sodium hydroxide solid soluble solution solvent structure substance sulphate sulphuric acid vacuum washed yellow needles yield zinc