Journal of the Chemical Society, Part 3Chemical Society., 1949 |
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Results 1-3 of 95
Page 1685
... absorption bands of longest wave - length . * The absorption data , taken from the literature , were obtained usually in alcoholic solution . In general , the approximate mirror - image relation between the fluorescence and the absorption ...
... absorption bands of longest wave - length . * The absorption data , taken from the literature , were obtained usually in alcoholic solution . In general , the approximate mirror - image relation between the fluorescence and the absorption ...
Page 1897
... absorption : see table ( Braude , Jones , Sondheimer , and Toogood , loc . cit . , for a sample obtained by the partial hydrogenation of 6 - methyl - 25 - dihydroacetophenone , give b . p . 89-91 ° / 14 mm . , n 1.4842 . Light absorption ...
... absorption : see table ( Braude , Jones , Sondheimer , and Toogood , loc . cit . , for a sample obtained by the partial hydrogenation of 6 - methyl - 25 - dihydroacetophenone , give b . p . 89-91 ° / 14 mm . , n 1.4842 . Light absorption ...
Page 1903
... absorption is that the absorption due to isolated chromophores is additive , i.e. , that the interaction between the unsaturation electrons of groups separated by one or more saturated carbon atoms is too weak to affect the spectral ...
... absorption is that the absorption due to isolated chromophores is additive , i.e. , that the interaction between the unsaturation electrons of groups separated by one or more saturated carbon atoms is too weak to affect the spectral ...
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Common terms and phrases
acetic acid acetic anhydride acetone acetyl added admixture alkaline alkyl aluminium chloride Amer ammonia aqueous solution atoms barium benzene boiling bromine Calc carbinol carbon catalyst Chem Chim chloroform colourless needles compound concentrated condensation cooled crystals cyclohexene D.Sc decomp derivatives dilute dioxan dissolved distilled dithizone dried equiv ester ethanol ethyl acetate ethyl alcohol evaporated EXPERIMENTAL filtered filtrate formed Found fraction gave give heated under reflux hydrocarbon hydrochloric acid hydrogen chloride hydrolysis iodide ions isolated ketone Light absorption light petroleum b. p. method methyl mixed m. p. mixture molecule obtained oxide phenyl plates potassium hydroxide precipitated prepared pressure prisms pyridine Q-enzyme R₁ R₂ reaction reagent reduced removed requires residue room temperature salt semicarbazone separated sodium hydroxide solid soluble solvent specimen structure substance sulphate sulphone sulphuric acid synthesis Table unsaturated washed yield