13 C 13 C spin–spin coupling constants and  13 C isotope effects on  13 C chemical shifts in some 4‐membered rings | Zendy

Jokisaari Jukka | Zendy

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13 C 13 C spin–spin coupling constants and 13 C isotope effects on 13 C chemical shifts in some 4‐membered rings

Author(s) -

Jokisaari Jukka

Publication year - 1978

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.1270110313

Subject(s) - chemical shift , coupling constant , chemistry , carbon 13 , molecule , kinetic isotope effect , spin (aerodynamics) , isotope , oxetane , crystallography , organic chemistry , atomic physics , physics , nuclear physics , particle physics , deuterium , thermodynamics

The 13 C 13 C spin–spin coupling constants in natural abundance oxetane, thietane, cyclobutanone, bromo‐and chlorocyclobutane have been measured. Furthermore, the 13 C isotope‐induced changes in the chemical shifts of the different 13 C nuclei in the molecules mentioned above are reported. These shifts are normally to higher magnetic field; in cyclobutanone, however, the resonance of the carbonyl carbon has shifted to lower field because of the substitution of 13 C−3 for 12 C−3.

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