Combination Frequencies and Infra-red Absorption Spectra of Certain Alkaloids |
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11 WAVELENGTH FIG 60 TRANSMISSION 66 C. R. Smith 9 10 WAVELENGTH a-ß-dipyridyl absorption bands Acid Methyl Ester adjust alkaloids studied apparatus arecoline hydrobromide bands observed benzene Birge boiling point carbon CATHOLIC UNIVERSITY CH HC CH characteristic bands cm-1 COMBINATIONS collimating mirror colorless containing the pyridine curves degrees of freedom Ellis exit slit Fluorite prism Rock fundamental galvanometer glyoxaline nucleus H2O band harmonic series infra-red absorption spectra infra-red spectra Jour liquid Merck Company methyl anabasine mirror M₁ molecule molecules containing N-H vibrations N-Methyl-A-Tetrahydronicotinic Acid Methyl Nernst Nernst glower nicotine observed bands pelletierine Phys PHYSICAL CONSTANTS pilocarpine piperidine prism Rock salt pyridine nucleus pyrrolidine Radiometry Rock salt plates Rock salt prism S₂ Sister M. E. slit S₁ Sparteine Sparteine Sulphate spectrometer spectrum synthetic neo-nicotine TABLE telescope mirror thermopile thickness U. S. Department UNIVERSITY OF AMERICA v₂ vacuum distillation vibrations are present W. W. Coblentz water of crystallization λμ