1 H NMR studies on thioamides: Barriers to internal rotation | Zendy

Lepoivre J. A. | Zendy; Desseyn H. O. | Zendy; Alderweireldt F. C. | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

1 H NMR studies on thioamides: Barriers to internal rotation

Author(s) -

Lepoivre J. A.,

Desseyn H. O.,

Alderweireldt F. C.

Publication year - 1974

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.1270060510

Subject(s) - nitrobenzene , chemistry , internal rotation , naphthalene , proton , proton nmr , resonance (particle physics) , medicinal chemistry , analytical chemistry (journal) , crystallography , nuclear magnetic resonance , stereochemistry , organic chemistry , atomic physics , physics , catalysis , mechanical engineering , quantum mechanics , engineering

The barrier to the internal rotation of the dimethylamino group in thioamides of structure RCSN(CH 3 ) 2 , R being (CH 3 ) 2 ,NCS, CH 3 O 2 C or NC, is studied by proton magnetic resonance, using the lineshape analysis method of Nakagawa. In the solvents o ‐dichlorobenzene, naphthalene and nitrobenzene all Δ G ≠ values are in the range of 23 to 24 kcal/mol. In these solvents the E a and Δ S ≠ values of each product are linearly related to the dielectric constants.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research