Unusual  13 C/ 77 se couplings in the  13 C NMR spectra of selenoimidates | Zendy

Meese Claus O. | Zendy; Walter Wolfgang | Zendy

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Unusual 13 C/ 77 se couplings in the 13 C NMR spectra of selenoimidates

Author(s) -

Meese Claus O.,

Walter Wolfgang

Publication year - 1985

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260230510

Subject(s) - chemistry , spectral line , nmr spectra database , chemical shift , j coupling , resonance (particle physics) , nuclear magnetic resonance spectroscopy , crystallography , nuclear magnetic resonance , stereochemistry , physics , atomic physics , astronomy

The 13 C NMR. chemical shifts of several selenoimidates (3) are reported in comparison with imidates (1) and thioimidates (2). Distinct resonance signals of 3 show additional satellites arising from 77 Se couplings. Extremely large three‐bond couplings [ 3 J ( 13 C 77 Se) = 28–39 Hz] are observed in the Z configuration of the N‐methylselenoimidate double bond, where the coupling nuclei ( 77 SeCN 13 C) are cis ‐orientated.

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