Microwave spectrum of cyclopropane(1,1)dicarbonitrile

R. Pearson, A. Choplin, V. Laurie, J. Schwartz

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29 Scopus citations


The microwave spectrum of cyclopropane(1,1)dicarbonitrile has been studied between 18 and 40 GHz by modulated microwave double resonance spectroscopy. The molecule is a b-type asymmetric rotor with κ≈-0.20. Lines with J values up to 27 have been fit to a quartic Hamiltonian. Rotational constants obtained from this fit include A=3779.65 MHz, B=2549.21 MHz, C=1726.75 MHz. The CC bond opposite the substituents has been estimated from the planar moment to be 1.485±0.01 Å.

Original languageEnglish (US)
Pages (from-to)2949-2951
Number of pages3
JournalThe Journal of chemical physics
Issue number8
StatePublished - 1974

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry


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