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Updated: Aug 4, 2026

10:22
Basophil Activation Test for Investigation of IgE-Mediated Mechanisms in Drug Hypersensitivity
Published on: September 16, 2011
Response to letter from Bevington M., Electrosensitivity UK
Xavier Bosch-Capblanch1, Ekpereonne Esu2, Chioma Moses Oringanje3
1Swiss Tropical and Public Health Institute, Kreuzstrasse 2, Allschwil 4123, Switzerland; University of Basel, Petersplatz 1, Basel CH-4003, Switzerland.
Environment International
|August 30, 2024
Summary
No abstract available in PubMed .
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Overview
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds
In aromatic compounds, such as benzene, the circulation of (4n + 2) π-electrons sets up a diamagnetic or diatropic ring current around the perimeter of the molecule. This current induces a magnetic field that opposes the external field inside the ring and reinforces it on the outside. The protons in benzene are deshielded and exhibit high chemical shifts in the range 6.5–8.5 ppm. The shielding effect at the center of the ring is evident in complex aromatic molecules, such as annulenes. In...

