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Magnetic‐Field Effect in Aromatic Dediazoniation
Author(s) -
Laali Kenneth K.,
Gao Hong
Publication year - 1991
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19910740207
Subject(s) - chemistry , homolysis , intersystem crossing , cidnp , photochemistry , singlet state , nucleophile , aromaticity , radical , organic chemistry , excited state , atomic physics , catalysis , molecule , physics
Homolytic dediazoniation of tribromo‐ and trichloro‐benzenediazonium tetrafluoroborates in highly ionizing, low‐nucleophilicity solvents (trifluoroethanol and trifluoromethanesulfonic acid (TfOH)) exhibits a strong magnetic‐field dependency of dediazoniation products; a more facile singlet‐to‐triplet intersystem crossing results in increased radical‐escape products at higher magnetic fields.