The origin of aromatic solvent‐induced shifts in  19 F n.m.r. | Zendy

Takada Kanako | Zendy; Nakagawa Naoya | Zendy; Nikki Kunio | Zendy; Kimura Hiroshi | Zendy

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The origin of aromatic solvent‐induced shifts in 19 F n.m.r.

Author(s) -

Takada Kanako,

Nakagawa Naoya,

Nikki Kunio,

Kimura Hiroshi

Publication year - 1977

Publication title -

organic magnetic resonance

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0030-4921

DOI - 10.1002/mrc.1270090214

Subject(s) - solvent , chemical shift , chemistry , spectral line , organic solvent , solvent effects , organic chemistry , physics , chemical engineering , engineering , astronomy

Aromatic solvent‐induced shifts (ASIS) in 19 F n.m.r. spectra of several organic fluoro compounds have been determined in several solvents. 19 F n.m.r. signals of unsaturated fluoro compounds in C 6 F 6 and C 6 H 6 show excess high field shifts corresponding to the term σ c (solvent shift caused by chemical interactions). The mechanism of this shift is discussed in connection with the presence of an F‐π interaction. A thermal study also supports this idea.

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