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Page 2309
... spectrum ) has been studied in thin crystals at room temperature , at —140 ° and at about — 250 ° , in polarized light . Frequencies and wavelengths of the absorption maxima are reported in each polarization , having been measured in ...
... spectrum ) has been studied in thin crystals at room temperature , at —140 ° and at about — 250 ° , in polarized light . Frequencies and wavelengths of the absorption maxima are reported in each polarization , having been measured in ...
Page 2313
... spectrum illustrated in Fig . 3 ; in a thicker crystal more structure was visible . This is shown in Fig . 4 , and the new bands are recorded in Table 6. Two crystals only could be studied at this temperature and the accuracy of the ...
... spectrum illustrated in Fig . 3 ; in a thicker crystal more structure was visible . This is shown in Fig . 4 , and the new bands are recorded in Table 6. Two crystals only could be studied at this temperature and the accuracy of the ...
Page 2341
... spectrum , for the nitrogen atom from which then transition originates is not necessarily the basic centre of the pteridine molecule . π The most likely location of the non - bonding electron responsible for the n- band of the pteridine ...
... spectrum , for the nitrogen atom from which then transition originates is not necessarily the basic centre of the pteridine molecule . π The most likely location of the non - bonding electron responsible for the n- band of the pteridine ...
Contents
2 4Trimethylpentane | 2082 |
Cinnolines Part XXXIV 5 6 and 7Hydroxy and 5 6 and 7Aminocinnolines | 2100 |
The Conductometric Evaluation of the Ionisation Functions of the Monohalogenoacetic | 2104 |
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absorption acetic anhydride acetone acetyl added alcohol alkaline Amer ammonia atom band benzene boiling bromine Calc carbon carbonyl Chem chloride chloroform colour colourless compound concentrated cooled crystallised crystals decomp derivative diethyl dilute dioxide dissolved distilled dried eluted ester ethanol ethylene evaporated filtered fluoride formed Found fraction gave give glacial acetic acid H₂O heated hydrochloric acid hydrogen hydrogen bromide hydrogen chloride hydrolysis infrared isolated ketone lanthanons light petroleum b. p. liquid lithium aluminium hydride m. p. and mixed method methyl mixed m. p. mixture mole needles nickel nitrate nitric nitryl fluoride obtained oxidation oxygen peroxide potassium hydroxide precipitate prepared pressure prisms pteridine pyridine reaction reduction refluxed Reprint Order requires residue resin room temperature sodium hydroxide solid soluble solution solvent spectra spectrum structure sulphuric acid Table tube ultraviolet vacuo washed yellow yield