Peculiarities of intramolecular exchange and valence tautomerism in metal semiquinolates determined by high‐resolution NMR spectroscopy | Zendy

Voronov Vladimir K. | Zendy; Ushakov Igor A. | Zendy; Shmelev Vadim V. | Zendy; Sagdeev Dmitry R. | Zendy

Premium

Peculiarities of intramolecular exchange and valence tautomerism in metal semiquinolates determined by high‐resolution NMR spectroscopy

Author(s) -

Voronov Vladimir K.,

Ushakov Igor A.,

Shmelev Vadim V.,

Sagdeev Dmitry R.

Publication year - 2012

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.3799

Subject(s) - chemistry , tautomer , intramolecular force , valence (chemistry) , nuclear magnetic resonance spectroscopy , spectroscopy , high resolution , carbon 13 nmr satellite , metal , transverse relaxation optimized spectroscopy , computational chemistry , fluorine 19 nmr , stereochemistry , organic chemistry , physics , quantum mechanics , remote sensing , geology

The 1 H NMR spectra of semiquinalate cobalt complex have been analyzed in a wide range of temperatures. It has been established that the intramolecular exchange requires the obligatory presence of a paramagnetic structure containing non‐compensated electron spin localized on the carbon atom of the ligand aromatic ring, the cobalt atom being trivalent. The presence of such a structure leads to the appearance of satellite signals in the NMR spectra because of the superfine interactions. Copyright © 2012 John Wiley & Sons, Ltd.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research