Magnetic Properties of Aromatic Hydrocarbons

Abstract

Hydrocarbons with paired electrons are diamagnetic. This means they are repelled in a magnetic field. This repulsion can be measured with a magnetic balance (Gouy’s method). The diamagnetic susceptibilities are calculated from the atomic increments (χ p ′) which are −2∙93 × 10−6 for hydrogen and −6∙0 × 10−6 for carbon. Moreover, there is a positive increment for the double bond of + 5∙45 × 10−6 and a negative one of −1∙44 × 10−6 for the benzene ring. The latter increments are called structural increments (λ) as opposed to atomic increments (χ p ′). The molecular diamagnetic susceptibility is calculated from1

Keywords

Anisotropy Benzene Hydrocarbon Phenylene Adduct 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1964

Authors and Affiliations

  • E. Clar
    • 1
  1. 1.University of GlasgowScotland

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