Chapter 4. Characteristic Frequencies of Molecules with Triple Bonds and Cumulated Double Bonds

  1. Dana W. Mayo,
  2. Foil A. Miller,
  3. Robert W. Hannah
  1. Robert W. Hannah,
  2. Foil A. Miller

Published Online: 10 JUN 2004

DOI: 10.1002/0471690082.ch4

Course Notes on the Interpretation of Infrared and Raman Spectra

Course Notes on the Interpretation of Infrared and Raman Spectra

How to Cite

Hannah, R. W. and Miller, F. A. (2004) Characteristic Frequencies of Molecules with Triple Bonds and Cumulated Double Bonds, in Course Notes on the Interpretation of Infrared and Raman Spectra (eds D. W. Mayo, F. A. Miller and R. W. Hannah), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/0471690082.ch4

Publication History

  1. Published Online: 10 JUN 2004
  2. Published Print: 7 MAY 2004

ISBN Information

Print ISBN: 9780471248231

Online ISBN: 9780471690085

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Keywords:

  • triple bonds;
  • cumulated double bonds;
  • acetylenes;
  • C[BOND]H stretch;
  • C[TRIPLE BOND]C stretch;
  • nitriles;
  • allenes;
  • ketenes;
  • isocyanates

Summary

Chapter 4 extends the discussion of hydrocarbon frequencies to alkenes and covers both open chain and cyclic olefins. The 3000 cm−1 rule is introduced. The displacement of the atoms leading to alkene group frequencies are described. The use of these modes to establish the substitution pattern of the unsaturation is covered. The influence of conjugation and polarization is explored.