Original scientific paper

17O Nuclear Magnetic Resonance Chemical Shift in Oxyhaemoglobin

A . Velenik ; Chemical Laboratory , University of Sussex , Brighton BNl 9QJ, England
R. M. Lynden-Bell ; Chemical Laboratory , University of Sussex , Brighton BNl 9QJ, England

Abstract

The 170 chemical shift of oxygen in oxyhaemoglobin is calculated
for two models, one corresponding to the Griffith structure
and the other to the Pauling structure. In both cases the oxygen
resonance is predicted to be several thousand ppm to low field of
the oxygen resonance in water. The shift between the oxygen
nuclei in the Pauling structure is predicted to be at least one
thousand ppm. This large deshielding arises from the local environment
of the oxygen molecule and depends critically on the
splitting of the degenerate it orbitals on complexing.

Keywords

Hrčak ID:

207938

URI

https://hrcak.srce.hr/207938

Publication date:

1.2.1970.

Visits: 648 *