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The absorption spectra of ethylene
The absorption spectra of cyanogen chloride
Calculations on the diacetylene molecule
2 other sections not shown
absorption spectrum acetylene alkyl substituted analogous antisymmetrical appears axis Bartholome and Karweil benzene capillary carbon cm7l cmT1 CNBr consecutive members corresponding cyanogen bromide cyanogen chloride cyanogen halides cyanogen iodide cyclopropane diacetylene diffuse absorption diffuse bands discharge tube double bond dynes electron volts electronic transition ethylene excited force constant frequency differences frequency separation fundamental frequencies grating ground groups heat of hydrogenation infra-red interaction terms ionization potential J.Chem.Phys long wavelengths low value maxima methyl millimetre mirror molecule normal incidence observed obtained pattern of three perpendicular photograph plate holder potassium cyanide potential energy function Price propylene radiation Raman spectrum region of diffuse Rydberg formula Rydberg series Scheibe and Grieneisen set of bands short wavelengths slit spectra spectrograph spectrum of cyanogen strong absorption substance symmetrical TABLE tetradeuteroethylene tube g twisting vibration valency frequencies valency vibration vibrational frequency vibrational progression vibrational structure wave number wavelengths West and Farnsworth zero point energy