LONG RANGE NUCLEAR SPIN-SPIN COUPLING. ALLENIC AND POLYACETYLENIC SYSTEMS
Abstract
A study was made to determine the magnitude and sign of coupling constants in allenic derivatives and to investigate some saturated systems for which significant super long-range coupling constants might reasonably be expected. Spinspin coupling between protons separated by 5 to 9 chemical bonds were observed in allenic and polyacetylenic systems. Analysis of the nuclear magnetic resonance spectrum of 1-chloro-1,2butadiene permitted the assignment of a negative sign to J13 opposite to the positive signs of J12 and J14. The relation of these results to the theory of proton-proton spin-spin coupling is discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1961
- Accession Number
- AD0266693
Entities
People
- Eugene I. Snyder
- John D. Roberts
Organizations
- California Institute of Technology